Basement Leak Repair in Longmont, CO
Don't let a wet basement undermine your home's integrity. GFR Plumbing provides prompt, reliable basement leak repair services throughout Longmont, CO.
- Same-Day Leak Detection
- Upfront Written Pricing
- Skilled Foundation Care
- Lasting Repairs
Your Solution for Basement Leaks in Longmont, CO.
We repair the leak, test the fix and tell you plainly what it will take to keep the space dry.
Basement Leak Repair in Longmont, CO That Fixes the Source, Not Just the Puddle
GFR Plumbing repairs basement leaks caused by failed supply lines, cracked drain pipes, floor drain backups and water seeping through walls or slab joints. We start by tracing the moisture with meters and thermal imaging so the repair addresses the real problem.
Our expertise includes:
- Exterior waterproofing membrane application
- Repair of cracked cast iron, ABS, PVC and copper lines in basements
- Hydrostatic pressure relief solutions

Additional Plumbing Maintenance Services in Longmont, CO
Our maintenance and specialty plumbing services in Longmont, CO catch small problems before they become emergencies.

Customers
Why Choose GFR Plumbing for Basement Leak Repair in Longmont, CO?
Our experienced technicians use proven techniques and quality materials to ensure your basement remains dry, safeguarding your home's integrity and your family's health.
- Local Expertise, We understand the specific soil conditions, climate patterns, and typical foundation types found in Longmont.
- Lasting Fixes, We address the cause, such as a failed fitting or poor drainage, so the leak does not return.
- Code Compliance, All our work meets local plumbing and building codes, giving you peace of mind.
Citywide Coverage
We provide consistent, high-quality basement waterproofing services across the entire Longmont area, ensuring no homeowner is left with a wet basement.
Experienced Team
Our team consists of well trained plumbing professionals with extensive experience in basement leak detection and repair. They are experts in identifying the exact source of water intrusion, from foundation cracks to faulty drainage systems.
Safety-First Approach
We take every precaution to protect your home and our team during basement leak repair. Our methods are designed to be safe, efficient, and compliant with all relevant regulations, ensuring a secure environment and a lasting repair.
Trusted Certified Longmont Plumbing Services Professionals
At GFR Plumbing, we take pride in providing licensed, certified plumbing services throughout Longmont, CO. Backed by recognized industry credentials, our experienced plumbers combine technical skill with genuine customer care. Whether it is repair, installation, or maintenance, we follow strict safety and quality standards to deliver long-lasting results you can trust.
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PHCC Plumbing Contractor Recognition
Better Business Bureau (BBB) Accreditation
Angi Certified Pro
ISO 9001 Quality Management CertificationLasting Basement Leak Repair Services in Longmont, CO
Wall and Slab Seepage Repair in Longmont
When water enters through foundation walls or the slab joint, the cause is usually surface water pooling against the house. Expansive clay soils are a well-known problem in parts of Colorado, swelling with moisture and lifting slabs, basement floors, and buried pipes. Dense or saturated soil can hold water near the foundation instead of letting it drain away. We seal penetrations where pipes pass through the wall and can install interior drain channels that carry seepage to a sump. We also recommend grading and gutter changes when outside water is the root cause.

Wall Leak Solutions in Longmont, CO
Beyond foundation cracks, we address leaks originating from basement walls due to porous concrete or masonry. Our methods include applying waterproof coatings and sealants that create a tough barrier against moisture. We also inspect for exterior drainage issues that might contribute to wall saturation, offering complete solutions for your Longmont home.
Water Heater and Appliance Leak Repair in Longmont, CO
Water heaters, softeners and laundry machines are often installed in basements, and their leaks pool fast. A dripping T&P valve, a corroded tank bottom or a split washer hose are common culprits. We repair or replace the failed part and install drain pans and leak sensors to catch future problems early. If a tank has rusted through, we can replace it the same day in most situations.
Hydrostatic Pressure Management in Longmont, CO
Heavy rain can lead to significant hydrostatic pressure against basement walls, forcing water through concrete. Drought cycles are common here, so water-efficient fixtures and careful irrigation choices are part of most plumbing upgrades. GFR Plumbing installs interior and exterior drainage systems, including French drains and weeping tile systems, to relieve this pressure. We also install sump pump systems to efficiently remove collected water, keeping your basement dry.
Commercial Basement Waterproofing in Longmont
Commercial properties in Longmont also face the risk of basement leaks, which can damage inventory and equipment and interrupt business operations. GFR Plumbing offers specialized commercial basement leak repair services, providing solid and scalable solutions tailored to the demands of business establishments. We minimize downtime and protect your assets with prompt, professional service.
Emergency Basement Leak Repair in Longmont, CO
A sudden basement leak can be a crisis, especially during heavy rains. GFR Plumbing provides emergency basement leak repair services in Longmont, CO to address urgent water intrusion issues quickly. Our fast response team is equipped to perform immediate diagnostics and temporary or permanent repairs, preventing further damage to your property and belongings.
Exterior Waterproofing Solutions in Longmont, CO
For comprehensive basement leak prevention, exterior waterproofing involves excavating around your foundation and applying waterproof membranes or coatings. This creates a robust barrier against moisture intrusion from the outside. While more involved, this method offers superior long-term protection against water damage, especially for older homes in Longmont.

Supply Line Leak Repair in Longmont
Water lines that run along basement ceilings and walls can leak at fittings, valves or pinholes. Mountain homes in Colorado frequently rely on private wells, which may need treatment for iron, manganese, or natural minerals. Water chemistry affects how fast copper corrodes, and older galvanized lines frequently rust from the inside. We locate the leak, replace the damaged section with copper or PEX and pressure test the repair. If the line shows widespread wear, we will tell you whether a partial repipe makes more sense.
Basement Leak Repair Near Me in Longmont, CO
Our team is always ready to head out to your Longmont location, providing prompt and efficient basement leak repair services. We take pride in being a reliable community partner, committed to protecting homes throughout Longmont from the risks of water damage.
Choosing a local expert like GFR Plumbing means you get a team familiar with Longmont's plumbing and foundation needs. We're your neighbors, committed to providing quality basement leak repair solutions right here in your community.
GFR Plumbing at a Glance
- Licensed and insured plumbers serving Longmont, CO
- Same-day appointments and 24/7 emergency response
- Clear written estimates, no hidden fees
- 4.8-star rated by 750+ Colorado customers
Longmont Map
Longmont Information
- Population
- 98,630
- Area codes
- 303/720/970
- Service area
- Longmont and communities within 40 miles
- Nearby
- Lafayette, Boulder, Broomfield, Loveland
Basement leak repair is crucial for homes in Longmont, CO, because shifting soil can crack foundations and heavy rain raises hydrostatic pressure against the walls. Expansive clay soils are a well-known problem in parts of Colorado, swelling with moisture and heaving slabs, basement floors, and buried pipes.
Expert Services
Trust our professionals for reliable GFR Plumbing solutions in Longmont, CO.
Our Specialized Plumbing Services in Longmont, CO
At GFR Plumbing, we provide a complete range of plumbing services across Longmont, CO. From leak detection to full system installations, our team ensures fast, precise, and affordable service for both residential and commercial properties. Explore our core services below:
How Our Basement Leak Repair Process Works in Longmont, CO
Our proven approach ensures effective and lasting basement leak repair for your Longmont home.
Request a Quote
Contact GFR Plumbing at (720) 727-9398 to schedule an initial consultation. We will gather information about your basement leak and arrange for a convenient on-site inspection.
Thorough Inspection
Our technicians will visit your property to identify the source of the leak, assess the extent of the damage, and recommend the most effective repair strategy. We use modern diagnostic tools to ensure accuracy.
Customized Repair Plan
Based on our findings, we'll present a detailed repair plan and a transparent estimate. We explain all options and answer your questions, ensuring you understand the proposed solutions.
Frequently Asked Questions About Basement Leak Repair in Longmont
Most basement plumbing leak repairs in Longmont cost $200 to $1,500, depending on the pipe and how hard it is to reach. Sump pump replacements run $600 to $1,800, and full interior drainage systems cost more. We give you a written price before work starts.
Common signs of a basement leak include damp spots on walls or floors, a musty odor, visible mold or mildew growth, white powdery efflorescence on concrete or masonry, pooling water, and warped baseboards or flooring. Don't ignore these warning signs; addressing them early can prevent more significant issues.
Heavy storms dump a lot of water quickly, and the soil around the foundation cannot absorb it fast enough. Drought cycles are common here, so water-efficient fixtures and smart irrigation choices are part of most plumbing upgrades. The water then pushes through wall joints, cracks and pipe penetrations. Better grading, gutters and a sump system usually solve it.
We commonly install Zoeller, Liberty and Wayne pumps because they are durable and parts are easy to find. We match the horsepower to your pit and lift height. Battery backup units are available for storm outages.
If your basement leak is due to a burst pipe, GFR Plumbing will first address the plumbing issue by repairing or replacing the damaged section. After the active leak is stopped, we can then assess any resulting water damage to your foundation or basement structure and recommend appropriate repairs to prevent future issues. Frost-free hose bibs are standard here, but they still burst if a hose is left attached when temperatures drop.
Yes. A small drip behind finished walls can rot framing, ruin flooring and grow mold within weeks. Catching it early keeps the repair small and the cost down.
Small repairs usually do not need a permit, but replacing drain stacks, adding a sump discharge or installing new fixtures may. Requirements vary by city and county. We handle any permits your project needs.
Yes, our repairs carry a workmanship warranty, and new pumps and parts include the manufacturer warranty. We put the warranty terms in writing on your invoice. If the same repair fails, we return to fix it.
What People Are Saying About Our Plumbing Experts?

Daniel K.
A pipe burst at 11 pm and they actually answered. The plumber showed up within the hour, shut everything down, and had us back to normal the next morning. Could not ask for more.
Emergency Plumbing · Longmont, CO
Patricia H.
We had a slab leak that two other companies could not find. GFR Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Boulder, CO
James P.
Our commercial plumbing system had a leak under the sink, and GFR Plumbing handled it professionally. The plumbers arrived quickly and restored everything without disruption to our customers.
Commercial Plumbing · Boulder, CO
Robert G.
The trenchless sewer replacement saved our front yard. They walked us through the camera inspection footage first so we knew exactly what we were paying for.
Sewer Line Replacement · Broomfield, CO
Laura S.
I scheduled a water heater replacement, and the team made the process smooth and affordable. The new unit works perfectly, and they cleaned up after completing the job.
Water Heater Replacement · Longmont, CO
Mark T.
When our office needed drain cleaning, GFR Plumbing provided quick, reliable service. The plumber arrived on time and made sure every drain flowed perfectly before leaving. Very satisfied.
Drain Cleaning · Longmont, CO













