Analyzing 6,634,1386.6M ReviewsFor 18,56018.6K Experts

Experts Reviews · Company report
Nor-Cal Maintenance | Gutter Installation & Services in Santa Rosa, CA logoHow 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%95+51.8Reliability 24%89+21.6Value 14%100+14.1Replies to reviews 7%89+6.3Craft & service penalty98−0.2Experts Score= 94Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.94SCORE

Nor-Cal Maintenance | Gutter Installation & Services in Santa Rosa, CA

Windsor, CA · Grade ALetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20. · #6Position by Experts Score among all companies we track in this category. of 31 deck contractors · 5.0★ from 164 Google reviews

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Report card

Percentile vs other deck contractors (100 = best)Each factor is scored 0–100 on absolute terms (star average, share of 1–2★ reviews, price verdicts…); standing within the category can only raise it, never lower it.. Strongest: value and momentum; weakest: replies to reviews.

SatisfactionSatisfaction · 54% of the scoreRecency-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.Nor-Cal Maintenance | Gutter Installation & Services in Santa Rosa, CA is better than 95% of deck contractors.A
95
ReliabilityReliability · 24% of the scoreHow 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.Nor-Cal Maintenance | Gutter Installation & Services in Santa Rosa, CA is better than 89% of deck contractors.A
89
Craft & serviceCraft & service · 0% of the scoreGoogle 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.Nor-Cal Maintenance | Gutter Installation & Services in Santa Rosa, CA is better than 98% of deck contractors.A
98
ValueValue · 14% of the scoreCustomers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Nor-Cal Maintenance | Gutter Installation & Services in Santa Rosa, CA is better than 100% of deck contractors.A
100
MomentumMomentum · 0% of the scorePenalises 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.Nor-Cal Maintenance | Gutter Installation & Services in Santa Rosa, CA is better than 100% of deck contractors.A
100
Replies to reviewsReplies to reviews · 7% of the scoreHow 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.Nor-Cal Maintenance | Gutter Installation & Services in Santa Rosa, CA is better than 89% of deck contractors.A
89

Reviews for your job

Customers hired Nor-Cal Maintenance | Gutter Installation & Services in Santa Rosa, CA for 5 kinds of job.

Nor-Cal Maintenance | Gutter Installation & Services in Santa Rosa, CA for rooftop/skylight cleaning

Clear ✕
Jobs reviewedHow many Google reviews are tagged with this job.5
★ on this jobAverage stars on the reviews where the customer tagged this exact job (Google’s “Services” field).5.00
Usually paidThe price range customers picked most often for this job.—
Rank for this jobPosition of this company in the Job match ranking for this job among the companies we track.Its Job match: 85/100.How Job match is calculatedBuilt only from reviews Google tagged “Rooftop/skylight cleaning”:Stars on this job 55%Number of such jobs 25%Overall Experts Score 20%Stars are pulled toward the category average 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.#2 / 3

All 5 Google reviews tagged “Rooftop/skylight cleaning”

CeylanLocal Guide · 17 reviewsTotal 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. · Edited 3 years ago★★★★★

I’ve been using Nor-Cal for many years now for rooftop and gutter cleaning and gutter replacements when needed. The crew is courteous and always on time. They inspect and inform me of any problem areas, do a timely and thorough rooftop and gutter cleaning job including flushing the gutter exits as many times as…

Rooftop/skylight cleaning+ Responsiveness+ Punctuality+ Quality
Bonnie4 reviewsTotal 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. · 3 years ago★★★★★

I hired Nor-Cal Maintenance to do several jobs around my home. Solar panels cleaned, moss removal from roof, gutter cleaning, windows washed inside and out and repair a torn sliding screen door. Dave, the owner was great to work with and Jesus did all the work. He did an excellent job on everything! My windows…

Rooftop/skylight cleaningInterior & exterior window cleaningService not listed+ Responsiveness+ Punctuality+ Quality
Shelly2 reviewsTotal 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. · 3 years ago★★★★★

The crew did a great job cleaning my gutters and best of all cleaning up after they were done!

Rooftop/skylight cleaning+ Responsiveness+ Punctuality+ Quality
Brett2 reviewsTotal 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 years ago★★★★★

Dave and his team were responsive and did a great job. They cleaned and repaired the gutters and cleaned all of the moss off of the roof. Prices were fair, showed up on time, and did a great job. Can't ask for anything more.

Rooftop/skylight cleaning+ Responsiveness+ Punctuality+ Quality
edgar5 reviewsTotal 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 years ago★★★★★

Guys showed up on time and were professional. They did a great job. Highly recommended.

Power/pressure washingRooftop/skylight cleaningInterior & exterior window cleaning+ Punctuality+ Quality+ Professionalism

Price

Not enough reviews with a price yet.

Price verdictsGoogle asks reviewers whether the price was great, reasonable or overpriced; these are their answers.

Great price 8%Reasonable 92%Overpriced 0%Not sure 0%

Jobs customers hired them for

JobReviewsCategory typical
Interior & exterior window cleaning14—
Power/pressure washing8—
Gutter cleaning7—
Rooftop/skylight cleaning5—
Roof cleaning3—

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