Klappenberger & SonGeneral contractor in Washington, D.C., DC
Klappenberger & Son is a general contractor at 1775 I St NW, Washington, DC 20006, ranked #6 of 1,709 general contractors in Washington, D.C. and rated 4.8 from 25 Google reviews. Open 24 hours a day, 7 days a week.
Washington, D.C., DCUpdated 0 paid placements in any rankingHow we rank
Key facts
| Address | 1775 I St NW, Washington, DC 20006, Washington, D.C., DCGet directions |
|---|---|
| Phone | (240) 512-6477 |
| Website | klappenbergerandson.com |
| Hours | Open 24 hours, 7 days a week |
| Google rating | 4.8 from 25 Google reviews |
Trades
Each trade shows the evidence we matched it on.
- General Contractingmain tradeGoogle main category
- Paintingadditional Google category
- Kitchen Remodeladditional Google category
- Bathroom Remodeladditional Google category
- Decks & Patiosadditional Google category
Service area
Serves Washington, D.C. and 3 towns within 25 miles: Shaw, Adams Morgan and Chevy Chase.
Based in Washington, D.C., DCView on map
Opening hours
| Day | Hours |
|---|---|
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
| Sunday | Open 24 hours |
- Open 24/7
- Open evenings — no
- Open Saturdays
- Open Sundays
- Emergency service
Typical general contracting prices
| Job | Low | Typical | High |
|---|---|---|---|
| Kitchen remodelPer project: typical range of customer-reported remodels (about $75 to $250 per sq ft). US national range × 1.00 South Atlantic factor (2025 Cost vs. Value Report) | $14,650 | $27,090 | $41,780 |
| Bathroom remodelPer bathroom: typical range of customer-reported remodels. US national range × 0.98 South Atlantic factor (2025 Cost vs. Value Report) | $6,520 | $11,910 | $17,300 |
Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.
Compare nearby general contractors
| Business | Rank | CR Score | Google rating | License verified | Saturday | Sunday | Distance away |
|---|---|---|---|---|---|---|---|
| Klappenberger & Son (this business) | — | 89 | 4.8 (25) | — | Yes | Yes | |
| i4 Improvements | #4 | 90 | 4.9 (55) | — | Yes | Yes | 3.8 mi |
| Pinkney Services Construction and Remodeling | #5 | 90 | 5.0 (33) | — | Yes | Yes | 1.5 mi |
| BasementRemodeling.com - DC - Finishing, Lowering And Underpinning | #7 | 89 | 5.0 (64) | — | Yes | Yes | 0.8 mi |
Questions about Klappenberger & Son
How is Klappenberger & Son ranked in Washington, D.C.?
Klappenberger & Son is ranked #6 of 1,709 general contractors in Washington, D.C. by CR Score, with 89 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity and profile completeness. No business can pay to change its rank.
What are Klappenberger & Son’s hours?
Klappenberger & Son is open 24 hours a day, 7 days a week. Its listed hours are Open 24 hours, 7 days a week. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.
What areas does Klappenberger & Son serve?
Serves Washington, D.C. and 3 towns within 25 miles: Shaw, Adams Morgan and Chevy Chase. The list is based on the business's location and the usual service radius for general contracting. Confirm your address is covered when you call.
What do Google reviews say about Klappenberger & Son?
Klappenberger & Son has a rating of 4.8 from 25 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 Klappenberger & Son?
Call Klappenberger & Son on (240) 512-6477. The business is at 1775 I St NW, Washington, DC 20006, Washington, D.C., DC. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.
Own Klappenberger & Son? Claim this profile.
Claiming is free. Correct your hours, trades and service area. The CR Score is recalculated from corrected data; payment never changes it.