Services Residential & Commercial Excavation

I highly recommend Curtis Markham for your septic, cistern, landscaping projects! He installed a septic system with laser-focused attention to detail! He worked closely with me and provided excellent suggestions for utility placements on my newly purchased land. His prices were very reasonable! I hope to use him in 2025 for additional landscaping projects. The county dept. loves his work! See more See less

Thanks to Curtis for installing the septic system. You are exactly what we needed for the job...a great communicator and expert in excavation and system installation. We gladly recommend! See more See less

Curtis has been great to work with. He knows his stuff and is very responsive. He is known, trusted, and communicates well with Archuleta County personnel. I’m building a new residence and his work to date has been exceptional. I look forward to continuing with Curtis on my project. See more See less

Our leach field stopped draining when gophers packed the infiltrators with dirt. We're so glad Curtis was recommended to us. He fit us in before winter, worked with the County, and managed to save us money. Curtis and Brian did a meticulous job. My husband and I highly recommend Markham Septic. Curtis is a great guy doing outstanding work. See more See less

Curtis has been the best contractor I have worked with in Pagosa. Always responsive, accurate and fair pricing. Best of all the quality of the work and attention to detail is awesome. I now have hired him for 4 different jobs and will be back for more in the spring! See more See less

Returns phone calls, meets his schedule, goes out of his way to meet emergencies, communicates well and on top of that does a great job! I would highly recommend! See more See less

I was in need of a large job that could be done in a timely manner without my being there. Curtis was excellent. He stayed in contact with me and did the job right on time. I highly recommend this company! See more See less

CURTIS INSTALLED A SEPTIC FIELD LINE FOR OUR OFF THE GRID CABIN. HIS WORK WAS EXCELLENT AND HE FINISHED THE PRJECT IN EXCELLENT TME. See more See less

Curtis came highly recommended by local friends when we purchased property in Pagosa Springs. He's communicative, prompt, and incredibly accommodating, a rare find in the area. He installed a driveway, parking pad, cistern, and septic system for us all while patiently fielding our questions as first-time land owners. His work speaks for itself and we admired the healthy relationship his crew has as they often joked and smiled while on site. I plan to hire Curtis for all future needs on our land, and you should too. See more See less

Curtis performed above average in both attention to service quality as well an excellent result! Thank you!! See more See less

I can't say enough great things about Curtis and Markham Septic & Excavation. We needed a replacement septic tank, and he was able to help guide us to get exactly what we needed for our property. Prompt, communicative, and extremely helpful. If I ever need help again, Curtis will be my first call! See more See less

I reached out to Curtis to help with some driveway and leveling work. He did an excellent job! Communication was great every step of the way. His price was very reasonable. I will use him again for future projects I need completed. See more See less

Great guy and great work. Everything was installed perfectly. No problems and super fast. Couldn't recommend him enough See more See less

Curtis installed a septic system for me and did a great job! Also leveled a pad for my new house, he’s honest does great work and reasonably priced. See more See less

Curtis is the best, fair and honest. I was quoted by a company out of Durango $9400 for the work I needed. Curtis got it done for under $2000. Highly recommend! See more See less

Markham Septic & Excavation did an excellent job on our septic, cistern, driveway, rv pad and rock wall. Curtis is professional and wonderful to work with on a project! See more See less

Our backyard was needing a retaining wall. Curtis was very professional. Communication was always clear. We never had to wait to hear from him. His professionalism and expertise was great! He came when he said he would and the work he did was exactly what we wanted. We are very happy we went with Curtis for this project. See more See less

Curtis and team did an excellent job on our septic ! We are very happy we chose them ! See more See less

We had an emergency with a broken septic tank, this company came to the rescue, our call was returned and work was fast and professional, highly recommend this company See more See less

Curtis Markham came highly recommended by our friends here in Pagosa Springs, and he truly delivered! We had an big list of items: build a retaining wall, level our RV spots, add new water lines with weatherproof water spigots, and cut in new driveways. We were not in town while he worked on our property, so Curtis communicated regularly by phone, text and FaceTime, to keep us updated on his progress. He finished on time and at agreed upon budget. Would definitely hire again! See more See less

Curtis and his crew were awesome! Very responsive, showed up when they said they would and did great work installing risers on our septic tank. I highly recommend! See more See less

We are glad we chose Markham septic for my new septic system. He was very professional, very knowledgeable. He also showed up when he said he would, worked hard and got the job done. Thanks curtis See more See less

Markham Septic & Excavation did a excellent job and completed my septic system on time at the best price available. Markham also did some additional trenching work for me at reasonable cost. Make sure you receive a bid from Markham before you construct your system. See more See less

Curtis and his team were fantastic! They worked us in quickly on the calendar which was a huge help. Quoted us at a fair price and did great work! Easy to communicate with as well. See more See less

Best contractor to work with in Pagosa. He answers his phone, provides accurate timelines and does great work. He extended my driveway and built a huge retaining wall to hold the hill back from my house. I’ll be calling him for any excavation work in the future. See more See less

I worked exclusively with Curtis Markham, the owner of Markham Septic and found him to be both professional and easy to get along with. In my case, he made time for me through an already busy schedule because I had a job that had to be completed on short notice. I have zero issues recommending him and his company to anybody that may be in the need for Septic/cistern services. See more See less

Curtis did a great job of putting in a septic system to replace my sewage lagoon. Was very timely and reliable. Chuck See more See less

Curtis did a great job, worked quickly and efficiently and communicated with me the entire time. Highly recommend this service for septic installation! See more See less

Curtis did some excavation work for us. He is an honest, reliable, and enjoyable person who does great work. He communicates his plans very well and shows up when he says he will. He goes above and beyond to make sure the job is done to your satisfaction. We highly recommend Curtis Markham. See more See less

I was referred to Markham for septic pipe repair. He was very responsive, said he could do the work on a month, and would call when he had me scheduled. He did call with a date and did excellent work at a reasonable price. Highly recommend! See more See less

Curtis was awesome for us... he installed an awesome rock driveway for us in a couple of days. No more mud to deal with - Thanks Curtis See more See less

Curtis, thanks the great job you did. As you know it's hard to get contractors up to the upper basin. You did the job much faster than I expected, and you obviously know what you're doing. I have already shared my experience with several of our neighbors. Your price was more than fair, that is why I added some extra. You're on my "great contractor" list. See more See less

Curtis was wonderful! I had to be out of town and he took care of everything! I’m going to be using him for other projects as well! Thank you Curtis See more See less

Markham Septic installed a septic system, a cistern and a driveway with 2 RV pads. The workmanship was amazing and the attention to detail was exceptional. The results were exactly as I had envisioned it. I highly recommend Curtis and his team. If I need any additional excavation I will definitely use Markham Septic & Excavation. See more See less

Curtis and his team are great. Highly recommended. See more See less

I never thought having my septic system repaired and upgraded would be a good experience but was I ever surprised! One of those pleasant surprises was Markham Septic & Excavation. Not only did they do a wonderful job, they attended to it promptly and kept me informed about everything that was done. The cost was totally reasonable. I highly recommend them. Carla Kruger See more See less

We had a line put in to get off propane and onto natural gas. Curtis (owner) was and is always super responsive, courteous, and knowledgeable. Even when unexpected problems arose, he was helpful and timely. Even better still, prices are more than reasonable given his expertise and willingness to go above and beyond. We plan to use his services again later this year to have our yard graded as well. 100% recommend him to anyone in search of quality work!!! See more See less

Curtis is as open and punctual with cost, deliver ability and scheduling the work. Open in communication and completed the work. I would recommend Markham. See more See less

Did a very good job and got the work done quickly. Suggested improvements and issues and corrected past errors of other contractors. See more See less

Curtis is a great person to hire for any and all septic and excavation needs. He takes pride in his work/business and follows through on scheduling. Amazing finished results! Thanks!! See more See less

Highly recommend for your septic and excavation needs. He was very communicative and responsive through the entirety of the project. He’s earned my first call for any project moving forward in the Pagosa Area. See more See less

We were very fortunate to find Curtis last fall. We live in Arizona and hired his company and explained what we needed over the phone with photos. Curtis did an awesome job in working with our electrical contractor in preparing the electrical trench to meet specs, widening our driveway and installing our RV pad. He is very reliable, conscientious, professional and has great follow up. He also provided valuable insight into our projects. We are looking forward to working with him this summer for our septic install. I would highly recommend Markham Septic & Excavation for your project needs! See more See less

Very professional and reasonable! Curtis (Owner) has an exceptional instinct for performing work whether it is excavating for installing septic tanks or excavating to clear paths through land with hills or forests. Plus, he's Great to work with. See more See less

I needed my old orangeburg septic pipe replaced and Curtis did a great job. He was able to fit me in quickly and finished it up in a few hours for a very reasonable price. I highly recommend Markham Septic & Excavation! See more See less

Markham Septic and Excavation is by far the best excavator I’ve ever hired. He cleared my land, installed a driveway, and brought the electric, town water, and town sewer to our property. They coordinated everything with the town employees and electrical company to make it all happen. Curtis was very communicative. He returns calls and kept me up to date when challenges arose. 5 Stars all the way! See more See less

If you don't want to deal with the "Pago-slow" mentality choose Curtis! He has done 2 jobs for me and I am overly thrilled with both. He finished my septic system in 7 days. Shop local, support small business. Curtis will not disappoint. See more See less

Curtis is fantastic at communicating! Great follow through and detailed at his work. A pleasure to work with!! See more See less

Excellent work. Very timely. Reasonably priced, compared to others. Plan future additional system, Markham Septic &Excavation will be my only choice. See more See less

Curtis did a great job for us and I highly recommend him! Our property had been neglected by the previous owners for many years so he completed about a dozen small dirt work projects for us including leveling a few RV pads, improving grades for drainage and spreading gravel. He showed up on time and was always actively working during the hours he was billing. On top of that, he's a genuine and trustworthy person with reasonable rates and good quality equipment to quickly get the work done. See more See less

The experience I had with Curtis and his company was absolutely amazing. He was quick to communicate and easy to work with. He helped me out in a tricky situation I was in with the mortgage lenders in order to close on a house. He installed an entire septic system in 2 days and did not make a mess of the site at all. The finished product was perfect. No BS, just honest work delivered on time, like the good ol days. I highly recommend them for any project you have, you won’t regret it! See more See less

Thank goodness the septic designer recommended Curtis. He'll be my go-to from now on for anything dirt related. He did a great job installing the septic system to specs and working with the county to get everything inspected, and handling the excavation on the property for the garage. We'll be using his services for the driveway, culvert and other excavation work we have coming up. Like everyone else said, he's responsive and responsible and gets the work done well and at a reasonable cost. Finding these solid contractors is critical in our town, and I'm so glad I have his number See more See less

Curtis was awesome. He finished ahead of schedule and his work was top notch. Would definitely use him again. See more See less

Curtis and his team were a pleasure to work with. He was responsive and provided a written estimate up front to regrade and shape or lake shoreline and place rocks to prevent erosion. He showed up to meetings and to do the work on time. When he had to pause work for a few days because of the rain, he communicated his plans clearly. He checked with us during the project to make sure our expectations were being met. Overall the outcome was great and I would highly recommend Curtis. See more See less

Curtis’ company did an outstanding job of laying rock along our shore line on Pagosa Lakes. Looks real professional! See more See less

Markham Septic and Excavation did an outstanding job installing our replacement septic leach bed. They made it prairie dog proof, and the quality of work was excellent. Curtis Markham was professional, prompt, and very easy to work with. Great communication throughout the process. Highly recommend! See more See less

So fortunate that Markham Septic came to Pagosa. A year ago I was selling my house and needed to bring the septic risers up to code ASAP. Many stressors were happening all at once, I thought the septic was going to be the end of me, it Curtis was so kind, smart, professional and really! fast. Thank you for everything. Highly recommend!! See more See less

I’d give 6 Stars if I could. Curtis and Brian were very nice and beyond helpful. I’ve never had to replace a tank before and didn’t realize the process that is involved. They each told me who I would need to contact and the process I would need to follow. Not only was their work done when they said it would be, they were able to squeeze me in on an accelerated timeline that I didn’t realize I had. Great company to have in Pagosa See more See less

Curtis Markham, owner of Markham Septic & Excavation, did an awesome job installing a new septic system ar our home in Pagosa Springs. We received a very fair estimate and even though our property had groundwater that caused delays to our original install date, Curtis got it installed in a timely manner as soon as it was possible. He was accommodating with moving the lines where they would not cross the driveway as originally planned. He went above and beyond to move some rocks to our requested location and even seeded and covered the area with straw to prevent the birds from eating all the new seeds. I highly recommend Curtis and his company. See more See less

Need some serious dirt work or septic help in the San Juan Mountains? Call Markham Septic and Excavation in Pagosa Springs, Colorado and ask for Curtis. This guy doesn't just show up—he shows up early, with a plan, and probably already halfway through the job before you finish your coffee. Curtis runs the show like a boss, and his right-hand man Bryan is no slouch either. These two work like a well-oiled backhoe—efficient, powerful, and not afraid to get dirty (while somehow keeping everything surprisingly clean). They were on time, fast, and left the place looking better than they found it. No mess, no drama, no “we’ll be back next week.” Just straight-up solid work with a side of dry humor and small-town grit. If you're tired of flaky contractors and mystery invoices, trust me—Markham Septic and Excavation is the real deal. I'd recommend them in a heartbeat… and probably name my next dog Curtis just out of respect. See more See less

Curtis was courteous, timely, and did a great job. See more See less

Great work, always shows up and always on time. Put in our cistern and septic. Very pleased with the work. Curtis did for us. See more See less

Curtis is simply THE BEST! He is a very conscientious & hard worker. He even checks-in with me from time to time to see if I need any other work at my house. ❤️ See more See less

Markham Septic and Excavation is the kind of company you want when you are looking for quality and personal service. They were on the job first thing every morning and did not stop working until that day's planned work was completed. The attention to detail in the preparation and finish work was commendable. We can give enough positive comments to them. Outstanding in every way! See more See less

Curtis was highly recommended via a local Facebook group when I needed a septic system installed near Pagosa Springs. He was dependable, hardworking, and communicated well throughout the job. In addition to installing my septic system, he also put in a circle driveway on my property. While working on my place, my neighbors took note and were impressed with his work, and he ended up doing another septic install and driveway work for both of my neighbors. Everyone was please with the work! Would highly recommend! See more See less

Curtis is great! He quoted our septic system in March and told us we would be one of his first jobs when the snow melted. We ended up with a wet spring so he shifted us around to wait for things to dry out. He was on it as soon as things dried and did an excellent job with our install. We look forward to having him do our driveway if our builder doesn't do it himself. See more See less

We hired Markham Septic and Excavation to build our driveway, and install a large septic system. We did have other contractors bid this work. Markham numbers were competitive, and their scheduling was accommodating to ours. But after we hired Curtis, is when we were pleasantly surprised. He worked on our home, as if it were his own. Doing the small things, to make the final outcome look better than we expected. In todays world, good service and fair pricing, are harder to find. But the service you receive from Markham Septic and Excavation, will make you feel good about your decision to hire them. See more See less

Curtis did a phenomenal job replacing my septic tank and had very fair pricing. He is super responsive and end helped me document previous issues for legal purposes. Additionally he was always on time and actually was able to get my job done sooner! Highly recommend. See more See less

"Markham Septic & Excavation did an outstanding job on our septic project, even under challenging weather conditions. They worked diligently through rain and snow to complete the work on time without compromising quality. The team was professional, reliable, and clearly dedicated to getting the job done right. Their hard work and commitment to the project were impressive, and I felt confident in their skills every step of the way. If you're looking for trustworthy, hardworking professionals who go above and beyond, I highly recommend Markham Septic & Excavation!" See more See less

Highly recommend Markham Septic & Excavation!!! He was quick and very reasonably priced. Didn’t waste time at all, and got the job done in one day!!! Thank you so much See more See less

Curtis Markham and his team worked together on this job and was completed on time, it was crunch time and they did it. Awesome team, they know what they are doing. Will definitely have them work on more of my jobs in future. Reasonable cost also. Thank you!! See more See less

Curtis Markham is definitely running a 5-star business. This is our third summer working with him on a variety of projects for our property in Pagosa. From 'simple' trenching, to a complete septic install, and deep trenching our well and cistern holes he is always a pleasure to work with. Next year we start on some larger projects, and as long as Curtis is available, we won't hesitate to call on him to work with us again. He is a great communicator who does seriously good work, and a very nice person as a bonus. Pagosa is lucky to have him. See more See less

I hired Curtis for septic tank repairs and excavation work at my property after we lost our garage and much more due to the Oak Fire in Aspen Springs on August 10, 2025. He was out and helping us the next day even though he already had a full schedule of work. Throughout the rebuilding of our property after that fire he has been incredibly responsive and quick to help out. It's during challenging times like these that you really need a helping hand and I believe that Curtis has gone above and beyond to help ease our burden. Curtis really showed up for us. He does great work and I give him my highest recommendation. Many thanks Curtis, Dan and Juanalee Park See more See less

Recently purchased a property in Pagosa Springs Had driveway, culvert, pad and septic system installed by Markham Septic. Being new to town and many estimates we were lucky to find Markam Septic. He went above and beyond our expectations would recommend him to family and friends. Great work fast reliable service and best prices in town. See more See less

Curtis Markham is the man! I had him install a driveway, septic system, and a cistern on a hillside. I was out of town while did the work and I am very happy with how it all turned out! He asked the right questions, helped to make good decisions, and made good calls throughout the process. He also got it all done very quickly! He left the site very tidy and well graded. Very smooth process working w/ Curtis. Stoked on how it all turned out! Thanks again Curtis! See more See less