Compare the highest-rated insulation professionals in Portal, North Dakota. All contractors are licensed, insured, and verified through our rigorous screening process.
A leading regional supplier and installer of insulation based in Williston. They are well-known for their expertise in both residential and commercial projects, offering a comprehensive range of insulation solutions. Their strengths include professional installation crews, knowledge of energy-efficient building practices for the North Dakota climate, and the ability to source a wide variety of insulation materials.
A specialized contractor focusing primarily on insulation installation and energy upgrades. They have built a strong reputation for quality workmanship and customer service in the northwestern ND area. They are particularly adept at retrofit projects in existing homes, including complex wall insulation and attic upgrades.
While based slightly further away, this company is a top-tier specialist in comprehensive home energy efficiency. They go beyond basic insulation to provide a holistic approach, which is a significant advantage for homeowners seeking maximum comfort and utility savings. Their services are ideal for those wanting a full energy audit alongside insulation and air sealing.
** The insulation market serving Portal, North Dakota, is characterized by a reliance on regional contractors from larger hubs like Williston and Dickinson. Due to the extreme continental climate with very cold winters and hot summers, the demand for high-quality insulation is strong, driven by the need for energy conservation and home comfort. The competitive level is moderate; while there are not dozens of providers, the existing companies are established, professional, and well-versed in the local building codes and the specific challenges of insulating homes on the northern plains. Typical pricing is in line with regional averages and can vary significantly based on the type of insulation and the scope of the project. As rough estimates: * **Spray Foam:** $1.50 - $3.50 per board foot. * **Blown-In Cellulose/Fiberglass:** $1,500 - $4,500 for a standard attic. * **Air Sealing & Energy Audits:** $300 - $800 for an audit; air sealing costs depend on the home's size and leakage. Homeowners in Portal are advised to seek multiple quotes and confirm that any contractor they hire is fully licensed and insured, and has specific experience with the harsh North Dakota climate. Many of these providers are familiar with and can help homeowners navigate potential energy efficiency rebate programs.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Portal regulations and climate
Get answers to common questions about insulation services in Portal, North Dakota.
For Portal's extreme continental climate with bitterly cold winters and hot summers, creating a continuous thermal envelope is key. We prioritize air sealing and high R-value insulation in attics and walls to prevent heat loss. Blown-in cellulose or fiberglass in attics (often aiming for R-49 to R-60) and properly installed wall insulation are critical to combat North Dakota's temperature extremes and reduce heating costs, which are a major household expense here.
The ideal time is late spring through early fall (May to September). During these months, temperatures are more moderate, allowing for proper installation of materials like spray foam that require specific temperature ranges. Scheduling during this window also ensures the work is completed before the harsh winter sets in, allowing you to reap the energy-saving benefits during the coldest and most expensive heating season.
Insulation work must comply with the North Dakota State Building Code, which adopts the International Residential Code (IRC) and sets minimum R-value requirements for our climate zone. While Portal itself may not have additional local codes, it's crucial to use a licensed contractor familiar with state standards. For rebates, check with Mountrail-Williams Electric Cooperative or other local utilities, as they occasionally offer incentives for energy efficiency upgrades that include insulation.
Look for contractors with proven experience in North Dakota's climate and who are licensed and insured in the state. Ask for local references in Portal or nearby communities like Stanley to verify their workmanship. A reputable provider will offer a detailed, in-home assessment and explain how their solution addresses specific local issues like wind-driven infiltration and ice dam prevention, rather than just giving a generic quote.
For many older homes in Portal, adding attic insulation alone is not a complete solution. Air sealing is often the first and most critical step to stop drafts coming from gaps, cracks, and old penetrations in your attic floor and walls. After thorough air sealing, adding the recommended level of attic insulation will be far more effective. A professional energy audit can identify these specific leakage points common in our region's older housing stock.