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If your sump pump is giving you trouble, or you’re looking to have a new one installed, you’ve come to the right place! We have different options, so our expert technicians can help you find the perfect one for your needs and budget. Contact us for more info and to schedule a job today!

Approximately 60% of homeowners in Boulder, CO and surrounding areas have concerns with moisture in the basement. Excess wetness elevates the likelihood of mold and mildew growth. Installed in a pit in the basement, a sump pump is designed to prevent flooding and keep the area and the home dry. The pump directs excess water to the storm drain.

Sump Pump Maintenance, Repairs, and More

Welzig Heating and Air provides for all of your sump pump needs, including new installation, replacements, maintenance, and repairs of all makes and models. Our skilled plumbers are equipped with the knowledge, tools, inventory, and background to ensure the perfect fit for your exact needs. We encourage a call to (720) 336-3777 to hear about options, make improvements and avoid needless mess, damage and expense due to flooding.

Need Help With Your Sump Pump?

Keeping flood water out of the basement protects against sewage backups and improves indoor air quality. There are fewer problems with wood rot, wood-destroying insects, electrical damage, and potential fire hazards. You’ll find a sump pump costs significantly less than the average cleanup and consequences from a flooded basement. Ask us about a battery backup and schedule service from Welzig Heating and Air today. Family-owned and operated, we offer satisfaction guaranteed across Boulder, Longmont, Louisville, and Lafayette, CO.

Satisfied Customers
They Speak For Us

Bob came out to look at our swamp cooler and was remarkably helpful and professional. Not only did he give me a knowledgeable diagnosis, but he also taught me a lot in the process. We’ll be calling him for all future needs with our cooling system.


Dave Kaplan-Gomez and James Miltersen installed my new Tankless Water Heater. Both were polite and professional. Care was taken not to damage anything in my house which I really appreciated. I use Welzig for all my HVAC needs and highly recommend them.


Our 23-year-old A/C system ran out of “borrowed time” and became too difficult to continue maintaining. With great advice from Casey Welzig,, we replaced the old system with a Bryant Evolution A/C system. Max Loustaunau and Seth Bernhardt did an excellent job with removing the old system and installing the new one. Both of them are great to work with — very professional and very personable. We are really amazed at how much better the new system works!

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