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Best Window Installers in Topsham, ME (2026)

52 window installers ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Topsham: A Plus Windows, CR Score 86/100; 5.0★ from 169 Google reviews; open 24/7.

  2. 5

    Best for emergencies (open 24/7): Maine Windows and Doors, posts 24/7 hours; ranked #5 of 52.

  3. 9

    Most-reviewed: Renewal by Andersen Window Replacement, 1,057 Google reviews at 4.8★, the most of 52 ranked; ranked #9.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

52 Topsham window installers are ranked here by CR Score, from 8 published factors. 2 are open 24/7, 27 open Saturdays and 10 open Sundays, based on posted hours. The median Google rating is 4.8★ across 52 rated businesses.

Most of this list also appears on the Window installers in South Portland Gardens ranking. See Window installers in South Portland Gardens

Top 10 window installers in Topsham at a glance

Top 10 window installers in Topsham at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1A Plus Windows865.0★ (169)South Berwick, 18 mi away24/7Overall
2Portland Glass of Brunswick854.8★ (213)Brunswick, 4 mi awaySat—
3Regal Replacement Windows824.9★ (40)Portland, 23 mi awaySat · Sun · Evenings—
4Portland Glass of Portland814.7★ (341)Portland, 24 mi awaySat—
5Maine Windows and Doors813.9★ (25)Portland, 24 mi away24/7Emergencies
6Portland Glass of Lewiston804.6★ (134)Lewiston, 16 mi awaySat—
7Portland Glass of Augusta804.8★ (132)Augusta, 28 mi awaySat—
8Portland Glass of Biddeford794.9★ (181)Biddeford, 39 mi awaySat—
9Renewal by Andersen Window Replacement794.8★ (1,057)Saco, 36 mi away—Most reviews
10Mandette Roofing Plus774.9★ (69)Portland, 22 mi awaySat · Sun · Evenings—

The 52 best window installers in Topsham, ranked

Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  1. Ranked #1 in Topsham

    #1 A Plus Windows

    Based in South Berwick, 18 mi away

    86/100CR Score

    Ranked #1 because of its Google rating and availability: 5.0★ from 169 Google reviews, open 24/7.

    • 5.0★ from 169 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    View profile for A Plus Windows(207) 899-9156

  17. #17 Jr's Glass & Windows

    Based in Lewiston, 15 mi away

    75/100CR Score

    Ranked #17 because of its Google rating and trade focus: 4.8★ from 30 Google reviews, listed on Google as “Window installation service”.

    • 4.8★ from 30 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    969 Lisbon St, Lewiston, ME 04240
    View profile for Jr's Glass & Windows(207) 504-4082

  19. #19 A-BEST Window

    Based in South Portland, 26 mi away

    74/100CR Score

    Ranked #19 because of its Google rating and trade focus: 4.6★ from 91 Google reviews, listed on Google as “Window installation service”.

    • 4.6★ from 91 Google reviews
    Hours
    Mon–Fri 8:30 AM–5 PM · Sat–Sun closed
    Address
    1199 Broadway, South Portland, ME 04106
    View profile for A-BEST Window(207) 799-6771

  20. #20 DaBella

    Based in Portland, 24 mi away

    74/100CR Score

    Ranked #20 because of its Google rating and review volume: 4.7★ from 186 Google reviews, 186 Google reviews.

    • 4.7★ from 186 Google reviews
    Hours
    Mon–Fri 7 AM–9 PM · Sat 8 AM–5 PM · Sun closed
    Address
    400 Riverside St unit 1a, Portland, ME 04103
    View profile for DaBella(207) 263-0516

  21. #21 Twin Town Glass

    Based in Paris, 34 mi away

    74/100CR Score

    Ranked #21 because of its Google rating and trade focus: 4.9★ from 73 Google reviews, listed on Google as “Window installation service”.

    • 4.9★ from 73 Google reviews
    Hours
    Mon–Fri 8 AM–4 PM · Sat–Sun closed
    Address
    217 Main St, South Paris, ME 04281
    View profile for Twin Town Glass(207) 331-3055

  24. #24 Rowe Carpentry

    Based in Gorham, 24 mi away

    73/100CR Score

    Ranked #24 because of its Google rating and trade focus: 5.0★ from 5 Google reviews, listed on Google as “Window installation service”.

    • 5.0★ from 5 Google reviews
    Hours
    Mon–Sat 7 AM–6 PM · Sun closed
    View profile for Rowe Carpentry(207) 405-1725

How much do window installers cost in Topsham?

Typical prices in USD, adjusted for Maine with a published regional index. Each row names its basis and month.

How much do window installers cost in Topsham?
JobLowTypicalHighBasisChecked
Window replacement$3,410$7,300$11,760Per project (several windows): typical range of customer-reported projects. US national range × 0.99 New England factor (2025 Cost vs. Value Report)October 2026

How we ranked Topsham window installers

We scored 52 Topsham window installers on 8 factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. Unknown factors are left out of the score, not counted as zero. Scores last refreshed October 22, 2026.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Topsham data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

Window installers in Topsham: frequently asked questions

Who is the best window installer in Topsham?

By CR Score, the highest-ranked window installer in Topsham, ME is A Plus Windows with a CR Score of 86/100. It has 5.0★ from 169 Google reviews. It is open 24/7. Portland Glass of Brunswick (#2) and Regal Replacement Windows (#3) follow. We ranked 52 window installers on 8 factors, last updated October 22, 2026.

Which window installers in Topsham are open 24/7?

2 ranked window installers in Topsham post 24/7 hours. The highest-ranked are A Plus Windows (#1) and Maine Windows and Doors (#5). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which window installers in Topsham work on weekends?

27 of 52 ranked window installers post Saturday hours and 10 post Sunday hours. The highest-ranked open Saturdays are A Plus Windows (#1), Portland Glass of Brunswick (#2) and Regal Replacement Windows (#3). Posted hours are office hours; crews may book weekend jobs separately.

How much does window replacement cost in Topsham?

Window replacement typically costs $3,410 to $11,760, with $7,300 typical (Per project (several windows): typical range of customer-reported projects. US national range × 0.99 New England factor (2025 Cost vs. Value Report)). The range is adjusted for Maine. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Topsham window installers have?

The median Google rating among 52 rated window installers in Topsham is 4.8★, with a median of 24 reviews. Renewal by Andersen Window Replacement has the most, 1,057 reviews, and ranks #9. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does ContractorsRanked rank window installers?

Each window installer gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Do window installers outside Topsham count in this ranking?

Yes, if they are within 40 mi of the Topsham city center, our service radius for window installers. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.

Can window installers pay to rank higher on ContractorsRanked?

No. The CR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured businesses may appear above the list, labelled Featured and showing their honest rank.

Update log for Topsham

  1. October 2026: CR Scores recalculated for 52 window installers serving Topsham.
  2. October 2026: 2 duplicate listings merged.

More window installers and Topsham pages

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