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Jun 30, 2025
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Four Reasons Why a Visual Inspection is Necessary When Quoting an Insulation Project

For many homeowners, purchasing a new roof is something that may only happen once or twice in a lifetime. This can lead to a lot of questions about roof replacement. Here are five common questions homeowners ask before installing a new roof, along with important information to consider before starting the project.

Home featuring GAF asphalt shingles, LeafGuard® Brand Gutters, soffit and fascia

Can I Install a New Roof Over an Old One?

Installing a new roof over an old one can save on the labor costs of tear-off. However, doing so prevents your contractor from inspecting the roof decking underneath the existing shingles for rot or other damage.

Adding another layer of shingles also increases the weight on your roof. Before agreeing to this approach, verify whether your municipality permits it and whether it meets the roofing manufacturer’s installation and warranty requirements. Learn more about common roofing mistakes homeowners should avoid.

Residential asphalt shingle roof on a home in Minnesota

How Do I Know If I Need a New Roof?

Water-stained ceilings, blistering shingles, missing granules, and damaged or deteriorating shingles can be signs that your roof may have reached the end of its lifespan. However, these warning signs do not always mean a complete roof replacement is necessary.

A professional roof inspection can help determine the condition of your existing roof, identify potential problems, and establish whether repairs or replacement should be considered.

What Should a Professional Roof Inspection Include?

A thorough roof inspection should evaluate more than the condition of the shingles. Your roofing contractor should also examine important components that affect the roof’s performance, including flashing, attic ventilation, insulation, gutters, and downspout drainage.

These areas work together to protect your home. Problems with ventilation, moisture, or drainage may contribute to damage that replacing shingles alone will not resolve.

During this Lindus Construction roof inspection, our craftsmen identified several concerns, including inadequate attic insulation, improper roof ventilation, flashing issues, clogged gutters, and a downspout directing water toward the home’s foundation.

Watch the inspection below to see why evaluating the entire roofing system is important before recommending a roof replacement.

A comprehensive inspection helps homeowners understand not only whether their roof needs replacement, but also whether other conditions should be addressed to protect their investment.

Learn More About the Components That Make Up a Roofing System:

Can I Install My Own Roof?

While installing your own roof may seem like a way to save on labor costs, roof replacement is a project best left to experienced roofing contractors.

Proper installation requires an understanding of roofing materials, flashing, ventilation, underlayment, and manufacturer specifications. Installation errors can lead to leaks, premature deterioration, and warranty complications.

Homeowners who begin a roofing project and encounter unexpected problems may also have difficulty finding a contractor willing to take over partially completed work.

Newly installed asphalt shingle roof on a residential home

How Do I Make Sure My Roofing Contractor Isn’t a Con Artist?

While there are many reputable roofing contractors in the industry, homeowners should take time to research any company they are considering hiring.

Before signing a roofing contract, ask about the company’s history, licensing, insurance, workmanship guarantees, and manufacturer warranties. Request references from previous customers and take time to read online reviews.

It’s also important to ask questions about the contractor’s references and understand exactly what is included in the roofing estimate.

Minnesota home featuring new asphalt shingles and LeafGuard® Brand Gutters

Should I Trust a Roofing Contractor That Knocks on My Door After a Storm?

After severe weather, homeowners may receive unexpected visits from roofing contractors offering inspections or repairs. While door-to-door solicitation does not automatically mean a contractor is dishonest, it’s important to carefully evaluate any company before agreeing to work.

Some storm-chasing contractors travel from one storm-affected area to another, making it especially important to verify their credentials, local presence, insurance coverage, and warranty support.

Be cautious of contractors who pressure you to sign immediately, promise to cover your insurance deductible, or discourage you from reviewing the contract.

Choosing an established roofing contractor with a history of serving your area can provide greater confidence that the company will be available if questions or warranty concerns arise after installation.

Have Questions About Roof Replacement in Minnesota or Wisconsin?

Since 1979, family-owned Lindus Construction has helped homeowners throughout Minnesota and Wisconsin make informed decisions about roofing and exterior home improvements.

Our craftsmen install GAF asphalt roofing systems, and qualifying roofing systems are backed by a 50-year non-prorated warranty covering materials and labor. We also stand behind our work with a lifetime workmanship guarantee.

Whether you’re noticing signs of roof deterioration or simply want to understand the condition of your existing roof, a professional inspection is an important first step.

Contact Lindus Construction to schedule a free roofing estimate and learn more about your roof replacement options.

Browse Our Roof Insulation & Ventilation Projects:

Insulation & Ventilation Reviews:

"Thank you for helping me resolve my challenge of maintaining my 100-year-old house.  To date, I have a new roof, insulation, gutters, and several new windows installed by Lindus Construction."

Patricia M.
Bloomington, MN
April 18, 2025

"We had a free inspection of our attic insulation by Logan. He said our insulation was just fine and would not recommend any work be done on it. So great to have an honest contractor who does not want to push product. Thank you for your honesty!"

Grant H.
St. Paul, MN
April 3, 2025

"Excellent customer service and the highest quality work. Went above and beyond to ensure project was completed timely and that all concerns were addressed and were handled to our complete satisfaction. Would highly recommend them. Special thanks to Randall for his excellent communication and care to ensure that all parts of the project were completed with the highest quality work."

Laurie K.
Burnsville, MN
March 21, 2025

"Tyler with Lindus did an amazing job of looking over my home and identifying some critical areas of need regarding insulation. I’ve spent my whole career in the trades and always enjoy learning new things and I definitely learned from Tyler. If you’re looking for honest and insightful help with insulation issues with your home, I would highly recommend Tyler at Lindus."

Andrew L.
St. Paul, MN
January 8, 2025

"My house is 30 years old, and I've never had my attic insulation evaluated. I felt I was overdue to get an inspection and I contacted Lindus Construction via their website. I received a call in a matter of minutes to schedule an inspection. A few days later, Kevin came out and conducted a thorough inspection. The good news was that I had adequate insulation and there was no need to add any more. The bad news was that he identified some mouse activity that I will need to address. Highly recommended contractor!"

Dave R.
Maple Grove, MN
October 12, 2024

"Lindus Construction has lived up to its promises and more. We had the Insulation in our roof replaced. They showed up on time, completed their work in two days, cleaned up so that you would never believe they had been there. Randall, the Supervisor came often to check on the progress and helped as well.  We would highly recommend this company to anyone considering some type of home remodeling. Grading AAA+."

Gary G.
North Branch, MN
June 12, 2024
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