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Green Onyx Construction, LLCGeneral contractor in Catonsville, MD

Green Onyx Construction, LLC is a general contractor in Catonsville, MD, rated 4.7 from 12 Google reviews. Open Monday to Saturday.

Catonsville, MD0 paid placements in any rankingHow we rank

Call (410) 258-9268Website ↗

Key facts

Key facts about Green Onyx Construction, LLC
Phone(410) 258-9268
Websitegreenonyxconstruction.com
HoursMonday to Friday: 8 AM – 6:30 PM; Saturday: 9 AM – 12 PM
Google rating4.7 from 12 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • General Contractingmain tradeGoogle main category

Service area

Serves Catonsville and 12 towns within 25 miles: Glassmanor, Oxon Hill, Fort Washington, Oxon Hill-Glassmanor, Bethesda, Friendly, Accokeek, Potomac, Hillcrest Heights, Bryans Road, Marlow Heights and Temple Hills.

Based in Catonsville, MDView on map

Opening hours

Opening hours for Green Onyx Construction, LLC
DayHours
Monday8 AM – 6:30 PMevening
Tuesday8 AM – 6:30 PMevening
Wednesday8 AM – 6:30 PMevening
Thursday8 AM – 6:30 PMevening
Friday8 AM – 6:30 PMevening
Saturday9 AM – 12 PM
SundayClosed
  • Open evenings (after 6 PM)
  • Open Saturdays
  • Open Sundays — no

Typical general contracting prices

Typical general contracting prices
JobLowTypicalHigh
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.

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.7from 12 Google reviews

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Questions about Green Onyx Construction, LLC

What are Green Onyx Construction, LLC’s hours?

Green Onyx Construction, LLC is open Monday to Saturday. Its listed hours are Monday to Friday, 8 AM – 6:30 PM; Saturday, 9 AM – 12 PM. On Saturdays it is open 9 AM to 12 PM and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Green Onyx Construction, LLC serve?

Serves Catonsville and 12 towns within 25 miles: Glassmanor, Oxon Hill, Fort Washington, Oxon Hill-Glassmanor, Bethesda, Friendly, Accokeek, Potomac, Hillcrest Heights, Bryans Road, Marlow Heights and Temple Hills. 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 Green Onyx Construction, LLC?

Green Onyx Construction, LLC has a rating of 4.7 from 12 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 Green Onyx Construction, LLC?

Call Green Onyx Construction, LLC on (410) 258-9268. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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