The Best Insulation Contractors in Grandville, MI

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1Premier Roofing & Exteriors★ 4.99 on this job109 jobs reviewedusually $2,000–4,000iHow Job match is calculatedBuilt only from reviews Google tagged “Roof repair for storm & wind damage”:Stars on this job 55%4.99★Number of such jobs 25%109Overall Experts Score 20%89Job match= 97Stars are pulled toward the category average (4.89★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.97

2Melvin Belk Roofing★ 5.00 on this job30 jobs reviewedusually $30,000–35,000iHow Job match is calculatedBuilt only from reviews Google tagged “Roof repair for storm & wind damage”:Stars on this job 55%5.00★Number of such jobs 25%30Overall Experts Score 20%92Job match= 90Stars are pulled toward the category average (4.89★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.90

3The Roof Dr.★ 4.93 on this job41 jobs reviewedusually $1–2,000iHow Job match is calculatedBuilt only from reviews Google tagged “Roof repair for storm & wind damage”:Stars on this job 55%4.93★Number of such jobs 25%41Overall Experts Score 20%85Job match= 86Stars are pulled toward the category average (4.89★) when a company has few tagged jobs, so 3 perfect reviews don’t beat 80 great ones. 4.3★ scores 0, 5.0★ scores full. Volume is compared with the busiest company for this job.86

Job match = this company’s ★ on reviews Google tagged “Roof repair for storm & wind damage” (shrunk toward the category average when there are few), how many such jobs it has done, and its overall Experts Score.

What customers said about roof repair for storm & wind damage

EEric1 reviewiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 17 hours ago★★★★★

The Roof Dr.

We had our roof replaced by Roof Dr. and the process from them was very personal and seemless. Matt and Dan were both at my home doing inspections, their team did great work, worked hard and had the whole job completed in a single day. They were very patient as we waited for an extended period of time to get our… Read full review

Paid $15,000–20,000Reasonable priceRoof repair for storm & wind damageRoof inspection

LLogan1 reviewiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a day ago★★★★★

Melvin Belk Roofing

Great company. Worked with Andrew of whom was great. Very professional and made sure all of our concerns were addressed. Would highly recommend.

Great priceRoof repair for storm & wind damage

JJeanette2 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 6 months ago★★★★★

Premier Roofing & Exteriors

We chose Premier based on recommendations from neighbors after significant hail damage to our roof and siding. We couldn’t be more pleased with the company and quality of work from start to finish! The process was smooth and timely, and communication was great all the way through. Premier worked with our insurance… Read full review

Paid $2,000–4,000Reasonable priceRoof repair for storm & wind damage

TTim6 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 4 weeks ago★★★★★

Melvin Belk Roofing

Melvin Belk has been so great at coming out for minor roof fascia repairs. They’re always friendly, helpful, trustworthy, and offer pragmatic advice without feeling pressure. They also did an excellent job replacing our roof 4 years ago (repairs they’ve done have not been related to the roof job as we elected not… Read full review

Great priceRoof repair for storm & wind damage

DDonna7 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a month ago★★★★★

The Roof Dr.

We had great work done by The Roof Dr. at our residence. The first was a roof leak on the 3 season porch. It doesn't have a shingled roof but has panels across the top with seams. Workers came within a couple days of my calling and repaired it very efficiently and inexpensively. Six weeks later we had the shingled… Read full review

Paid $5,000–10,000Great priceRoof repair for storm & wind damageRoof inspectionRoof repair

JJay1 reviewiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a month ago★★★★★

Melvin Belk Roofing

We are very satisfied with the team at Melvin Belk, Andrew helped us with all the insurance claims and once we were approved the team came in and did an out standing job both on the roof and siding. We could not be happier.

Paid $30,000–35,000Great priceRoof repair for storm & wind damage

Overall ratings

Experts Score 0–100iExperts Score (0–100)Absolute quality first: recency-weighted star average (≈54%), share of 1–2★ reviews (≈24%), customers’ price verdicts (≈14%), owner replies to critical reviews (≈7%); minus up to 10 points each for complaints flagged in Google review highlights and for a real slide in recent ratings. Hover a company’s score on its page for the full breakdown. and a letter grade per factor (A = top 20% of insulation contractors).

#	Company	ScoreiExperts Score (0–100)Absolute quality first: recency-weighted star average (≈54%), share of 1–2★ reviews (≈24%), customers’ price verdicts (≈14%), owner replies to critical reviews (≈7%); minus up to 10 points each for complaints flagged in Google review highlights and for a real slide in recent ratings. Hover a company’s score on its page for the full breakdown.	FactorsiFactor grades, in orderSatisfaction (54%): Recency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.Reliability (24%): How rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.Craft & service (0%): Google review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.Value (14%): Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Momentum (0%): Penalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.Replies to reviews (7%): How often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.One letter per factor score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = below 20.	★iGoogle star rating as shown on Google Maps.	Typical billiMedian bill customers of this company reported in their reviews (needs 3+ priced reviews).
1	Michigan Spray Foam InsulationGrandville, MI	A 95iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 69%94+65.1Reliability 31%96+29.5Experts Score= 95Not enough data for value, replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AA––––	4.93	—
2	Grandville Roofing and SidingGrandville, MI	A 94iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%93+54.6Reliability 26%95+24.8Value 15%100+15.2Craft & service penalty97−0.3Experts Score= 94Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AAAAA–	4.95	$17k
3	Melvin Belk RoofingGrandville, MI	A 92iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%91+49.6Reliability 24%88+21.3Value 14%100+14.1Replies to reviews 7%100+7.1Experts Score= 92Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AAAAAA	4.89	$7.1k
4	Gutter Helmet Of Michigan and IllinoisGrandville, MI	A 92iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%96+52.4Reliability 24%91+22.1Value 14%100+14.1Replies to reviews 7%45+3.2Experts Score= 92Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AA–AAC	4.90	—
5	Premier Roofing & ExteriorsGrandville, MI	A 89iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%92+50.2Reliability 24%87+21.1Value 14%100+14.1Replies to reviews 7%61+4.3Craft & service penalty95−0.5Experts Score= 89Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AAAAAB	4.91	$16k
6	The Roof Dr.Grandville, MI	A 85iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%90+49.1Reliability 24%82+19.9Value 14%100+14.1Replies to reviews 7%54+3.8Craft & service penalty79−2.1Experts Score= 85Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AABAAC	4.89	$4.1k
7	Michigan Spray Foam InsulationGrandville, MI	A 85iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 69%84+58.2Reliability 31%88+27.1Experts Score= 85Not enough data for value, replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	AA––A–	4.80	—
8	WMGB Home Improvement (Formerly West Michigan Glass Block)Grandville, MI	B 78iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%81+44.2Reliability 24%72+17.5Value 14%100+14.1Replies to reviews 7%100+7.1Craft & service penalty86−1.4Momentum penalty62−3.8Experts Score= 78Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	ABAABA	4.85	—
9	Koala Insulation of Grand RapidsGrandville, MI	B 78iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%82+44.7Reliability 24%73+17.7Value 14%99+14Replies to reviews 7%100+7.1Momentum penalty43−5.7Experts Score= 78Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	ABAACA	4.85	—
10	Georgetown Waterproofing IncGrandville, MI	B 60iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%68+39.9Reliability 26%57+14.9Value 15%93+14.2Craft & service penalty98−0.2Momentum penalty15−8.5Experts Score= 60Not enough data for replies to reviews; its weight is shared by the others.Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.	BCAAF–	4.77	—

What jobs cost

What customers paid, from the price Google asks reviewers to report.

Insulation Contractors in Grandville, MI at a glance

How the 10 insulation contractors we rated in Grandville, MI compare, and what customers praise most.

How we grade

Satisfaction (54%) — Recency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.

Reliability (24%) — How rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.

Craft & service (penalty, up to −10) — Google review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.

Value (14%) — Customers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.

Momentum (penalty, up to −10) — Penalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.

Replies to reviews (7%) — How often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.