Canyon Lake, Texas
Septic Installation in Canyon Lake, TX
Canyon Lake is our home market. Our yard is in Comal County, many of our customers live within sight of the lake, and we have been installing septic systems on these hillsides since 1995.
Why Canyon Lake Septic Work Is Different
Canyon Lake has no citywide sewer system, so most homes on the north shore, the south shore and the roads between them rely on septic. The terrain also makes installation more demanding than in most parts of Texas.
A typical lake lot has only a few inches of soil over limestone. Many are steep, wooded with cedar and oak, and reached by driveways that were never built for heavy equipment. Lots near the water or over the Edwards Aquifer contributing zone also face stricter review. For these reasons, most Canyon Lake homes are served by aerobic systems, often paired with drip fields that can follow the slope.

Septic Services We Provide in Canyon Lake
- New homes: aerobic systems with drip or spray disposal for custom homes and subdivision builds.
- Replacements: lake houses and older cabins with systems from the 1970s and 80s that have failed or did not pass a sale inspection. See septic replacement.
- Builders: ongoing work for builders constructing homes around the lake. See new construction septic.
- Commercial: larger multi-tank systems for shops and businesses along FM 306 and FM 2673.
- Site work: clearing, pads and driveways on the same property. See excavation and site work.
Site Evaluation, Design and Permits in Canyon Lake
Canyon Lake is in Comal County, so septic permits are issued by the county’s Environmental Health office within the Comal County Engineer’s Office in New Braunfels. Texas requires a site evaluation by a licensed site evaluator and a system design prepared by a registered sanitarian or professional engineer before a permit is issued. We work closely with an engineer we have a great relationship with and will put you in contact with them through our septic design and engineer referral service. The engineer handles the evaluation and design and guides you through the process. If you already have a design, we can price and install from it. We then install the system under our TCEQ OSSF installer license OS0031132, coordinate the county inspections and finish the site. Our Comal County permit guide explains each step.
Buying a lot near the lake? Find out whether it sits over the Edwards Aquifer contributing or recharge zone, and arrange a site evaluation before you close if possible. Both have a direct effect on septic cost.
Canyon Lake Neighborhoods and Roads We Serve
We install septic systems throughout the Canyon Lake area, including Startzville, Sattler, Fischer, Canyon Lake Hills, the subdivisions off FM 306 and FM 2673, River Road and the Guadalupe below the dam, and out toward Smithson Valley.
The Value of a Local Installer
A contractor from outside the area can price a Canyon Lake job from the plans. What they often miss is the true cost of the rock, how to bring equipment onto a steep lot without damaging it, and how to respond quickly if something needs attention later. We are local, we have worked this ground for three decades, and Dennis Varhol, who runs the company with his brother Mike, answers the phone himself.
Canyon Lake Septic FAQ
Canyon Lake Septic Questions
Is there sewer service in Canyon Lake?
Not in most of the area. The large majority of homes around Canyon Lake use on-site septic systems.
Do Canyon Lake homes need aerobic septic?
Most new systems around the lake are aerobic because of shallow soil over limestone, steep slopes and nearby water. The site evaluation determines the final system type. We can put you in contact with the engineer we work with to complete it through our septic design and engineer referral service.
Who issues septic permits in Canyon Lake?
Comal County’s Environmental Health department, part of the Comal County Engineer’s Office in New Braunfels.
How much does a septic system cost in Canyon Lake?
An aerobic system on a rocky lake lot costs more than a conventional system on flat, deep soil. Our cost guide explains the main factors. Call us to discuss your lot. We can connect you with our engineer for the site evaluation and design and provide an accurate installation quote.





Customer Reviews
Trusted by Homeowners and Builders Across the Hill Country
“Dennis and his team planned my site and installed my septic in Canyon Lake. I had never developed a site before and they held my hand from start to finish. They were patient, trustworthy, competent and dependable. I’d absolutely recommend them for your install.”
Google review
“We got our septic system in and to top it off we needed brush hauled off some roads and a couple culverts put in. … All our trenches for water electricity and propane. They were great. … Dennis and Mike were great.”
Google review
“Dennis is exceptionally professional and knowledgeable regarding the services needed. Dennis takes the time to explain the whole process patiently and thoroughly. I HIGHLY recommend Peter Varhol Const. for all your septic needs!”
Google review
“Highly recommend. Dennis has done 4 septic installs for my company.”
Google review
“The septic install went smoothly with great attention to detail. I highly recommend Dennis and his team at Peter Varhol construction.”
Google review
“Great company to work with. They are punctual and masters of their trade. Look forward to many more projects with them.”
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Free Quote
Start Your Septic Project with a Free Quote
Send us the property address and a few details about your project. We will review the site, explain what the county is likely to require, and provide a clear, itemized quote.
- (830) 822-4628Mon–Fri, 7am–6pm
- 8053 FM 2722, New Braunfels, TX 78132Serving Canyon Lake, New Braunfels, Bulverde, Spring Branch, Boerne, San Antonio & Blanco

