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GrumcoWindow installer in Federal Way, WA

Grumco is a window installer at 31919 1st Ave S, Federal Way, WA 98023, rated 3.9 from 31 Google reviews. Open Monday to Friday.

Federal Way, WA0 paid placements in any rankingHow we rank

Call (206) 575-7944Website ↗

Key facts

Key facts about Grumco
Address31919 1st Ave S, Federal Way, WA 98023Get directions
Phone(206) 575-7944
Websitegrumcoblinds.com
HoursMonday to Friday: 8 AM – 3 PM
Google rating3.9 from 31 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • Windowsmain tradeGoogle main category

Service area

Serves Federal Way and 11 towns within 40 miles: Lakeland North, Lakeland South, Milton, Edgewood, Auburn, Pacific, Fife, Des Moines, Kent, Tacoma and Lea Hill.

Based in Federal Way, WAView on map

Opening hours

Opening hours for Grumco
DayHours
Monday8 AM – 3 PM
Tuesday8 AM – 3 PM
Wednesday8 AM – 3 PM
Thursday8 AM – 3 PM
Friday8 AM – 3 PM
SaturdayClosed
SundayClosed
  • Open evenings — no
  • Open Saturdays — no
  • Open Sundays — no

Typical window installation prices

Typical window installation prices
JobLowTypicalHigh
Window replacementPer project (several windows): typical range of customer-reported projects. US national range × 1.08 Pacific factor (2025 Cost vs. Value Report)$3,710$7,930$12,770

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Reviews

ContractorsRanked reviews

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Google

3.9from 31 Google reviews

Hired Grumco? Write a review

Questions about Grumco

What are Grumco’s hours?

Grumco is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 3 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Grumco serve?

Serves Federal Way and 11 towns within 40 miles: Lakeland North, Lakeland South, Milton, Edgewood, Auburn, Pacific, Fife, Des Moines, Kent, Tacoma and Lea Hill. The list is based on the business's location and the usual service radius for window installation. Confirm your address is covered when you call.

What do Google reviews say about Grumco?

Grumco has a rating of 3.9 from 31 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact Grumco?

Call Grumco on (206) 575-7944. The business is at 31919 1st Ave S, Federal Way, WA 98023. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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