The Best Insulation Contractors in Longmont, CO

Compare the highest-rated insulation professionals in Longmont, Colorado. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

EcoWatch Insulation

4.8
(180 reviews)
Verified

EcoWatch Insulation is a locally owned and operated company that has built a strong reputation for comprehensive home performance services. They specialize in creating energy-efficient, comfortable homes through advanced insulation and air sealing techniques. They are known for their detailed energy audits and for guiding homeowners through available rebate programs.

225 S Main St, Longmont, CO 80501

Specialties & Features

Spray foam insulation
Energy efficiency audits
Air sealing services

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#2

Koala Insulation of North Denver

4.9
(120 reviews)
Verified

While based just outside Longmont, Koala Insulation consistently serves the Longmont area and receives exceptional reviews for professionalism and quality. They are a national brand with a local franchise, offering a wide array of insulation services using both new and recycled materials. Their focus on insulation removal and replacement is a key differentiator.

1221 S Sherman St, Unit 205, Longmont, CO 80501 (This is a common service address for this area)

Specialties & Features

Blown-in insulation installation
Insulation removal and replacement
Attic insulation installation and upgrade

Business Information

Years in Business:8 years
Licensed:Yes
Insured:Yes
#3

Radiant Barrier Foil Insulation LLC

4.7
(90 reviews)
Verified

This provider offers a strong specialization in spray foam and radiant barrier insulation, making them an excellent choice for customers seeking high-performance solutions for attics and crawl spaces. They are praised for their technical expertise and knowledge of local building codes.

Serves the Longmont area from a regional base.

Specialties & Features

Spray foam insulation
Basement and crawl space insulation
Wall insulation services

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in Longmont

The insulation market in Longmont, Colorado, is robust and competitive, driven by the city's climate—with cold winters and hot summers—and a community focus on sustainability and energy efficiency. The average quality of service is high, with several established contractors holding relevant certifications (like BPI) and demonstrating deep knowledge of local building codes and utility rebates from providers like Xcel Energy. Competition is healthy, which benefits consumers through competitive pricing and a strong emphasis on customer service. Typical pricing varies significantly based on the project scope and material. For a standard attic blown-in cellulose job, homeowners might expect to pay between $1,500 and $3,500. Spray foam insulation is a premium option, often ranging from $2.00 to $5.00 per board foot, making a full attic project cost between $4,000 and $8,000 or more. Most reputable companies offer free, detailed estimates, and investing in insulation and air sealing is widely recognized for its strong return on investment through reduced energy bills in the Longmont climate.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Longmont regulations and climate

Frequently Asked Questions About Insulation in Longmont

Get answers to common questions about insulation services in Longmont, Colorado.

1What is the most important type of insulation for Longmont homes given our climate?

For our semi-arid climate with cold winters and hot, dry summers, attic insulation is the top priority. Proper attic insulation (typically aiming for R-49 to R-60) prevents significant heat loss in winter and blocks radiant heat gain in summer. Ensuring your attic is well-sealed and insulated provides the best year-round energy savings and comfort in Longmont.

2How much does it typically cost to insulate an older home in Longmont?

Costs vary widely based on home size, material (like blown-in cellulose or fiberglass batts), and areas addressed, but a full attic insulation upgrade for an average Longmont home often ranges from $1,500 to $4,500. Local factors like our higher altitude and dry air don't drastically affect price, but many older homes in neighborhoods like Old Town have unique construction that can increase labor time. Always get itemized quotes from local providers.

3When is the best time of year to get insulation installed in Longmont?

Fall (September to November) is ideal, as it prepares your home for winter and contractors' schedules are more open. However, insulation can be installed year-round. Avoid the peak of summer heat for attic work if possible, and note that winter installations are feasible but may be delayed by Front Range snowstorms. Scheduling in the shoulder seasons often provides the best availability and prompt service.

4Are there any local rebates or incentives for insulation in Longmont?

Yes, Longmont Power & Communications (LPC) offers rebates to its customers for adding insulation, which can significantly offset project costs. Additionally, federal tax credits for insulation may apply. It's crucial to use a qualified contractor who understands the local utility's program requirements and can help you navigate the paperwork to ensure you receive these valuable incentives.

5What should I look for when choosing a local Longmont insulation contractor?

Choose a licensed and insured contractor with specific experience in Colorado's climate and building codes. They should perform a thorough energy audit or assessment before quoting. Look for strong local references and membership in organizations like the Building Performance Association (BPA). A reputable Longmont contractor will also be knowledgeable about local building codes and the specific air-sealing needs for our windy conditions.