Columbia, SC · Commercial & Residential
The Professional
Shine, Every Time.
Streak-free window cleaning, gutter service, and pressure washing for homes and businesses across Columbia, SC. Commercial contracts. Residential bookings. Always on call.
Request a Free Quote
Same-day response guaranteed
What We Do
Built for Results.
Residential jobs, commercial contracts, and everything in between. Every service backed by a streak-free guarantee.

Commercial Storefronts
First impressions close deals. We keep your storefront glass immaculate: weekly, bi-weekly, or monthly contracts available.

Residential Windows
Inside and outside, streak-free every time. Includes screen and sill cleaning on every job.

Pressure Washing
Driveways, decks, building exteriors. Years of staining, algae, and grime removed in hours.
Simple Process
How It Works
Call or Request a Quote
Reach Dennis directly at (803) 609-7995 or fill out the online form. Same-day response, always.
We Show Up On Schedule
No vague windows, no chasing vendors. We confirm the appointment and arrive exactly when we said we would.
The Professional Shine
Every pane streak-free before we leave. Commercial clients get a checklist. Residential clients get a walkthrough.
Client Reviews
What Clients Say
“We have weekly service on our front glass and have not had a single complaint since Watson took over. Customers actually comment on how clean the windows are.”
Marcus T.
Restaurant Owner, Columbia SC
“Called on a Tuesday, Dennis was there Thursday. Windows looked better than when the house was built. Will absolutely use again.”
Carrie B.
Homeowner, Forest Acres
“I manage 12 units and Watson Windows handles all of them on a rotating schedule. Professional, reliable, and fair pricing. Exactly what I needed.”
James W.
Property Manager, Lexington
“Had them do our medical office windows before our accreditation inspection. They were spotless. We passed with flying colors.”
Angela R.
Office Manager, Columbia
“Monthly contract with Dennis has been the best thing for our storefront. Never have to think about dirty windows anymore.”
Kevin S.
Retail Store Owner
“The gutter cleaning was thorough and the downspouts were completely cleared. He showed me before-and-after photos on every section.”
Linda M.
Homeowner, Irmo
“Reliable, on time, quality work every visit. Dennis is the only window cleaner we will use for our properties.”
Robert H.
Commercial Landlord
“Watson Windows does our entire community each quarter. Residents consistently praise how professional and thorough the service is.”
Patricia C.
HOA Manager
“We have weekly service on our front glass and have not had a single complaint since Watson took over. Customers actually comment on how clean the windows are.”
Marcus T.
Restaurant Owner, Columbia SC
“Called on a Tuesday, Dennis was there Thursday. Windows looked better than when the house was built. Will absolutely use again.”
Carrie B.
Homeowner, Forest Acres
“I manage 12 units and Watson Windows handles all of them on a rotating schedule. Professional, reliable, and fair pricing. Exactly what I needed.”
James W.
Property Manager, Lexington
“Had them do our medical office windows before our accreditation inspection. They were spotless. We passed with flying colors.”
Angela R.
Office Manager, Columbia
“Monthly contract with Dennis has been the best thing for our storefront. Never have to think about dirty windows anymore.”
Kevin S.
Retail Store Owner
“The gutter cleaning was thorough and the downspouts were completely cleared. He showed me before-and-after photos on every section.”
Linda M.
Homeowner, Irmo
“Reliable, on time, quality work every visit. Dennis is the only window cleaner we will use for our properties.”
Robert H.
Commercial Landlord
“Watson Windows does our entire community each quarter. Residents consistently praise how professional and thorough the service is.”
Patricia C.
HOA Manager
For Property Owners & Managers
Your Building Deserves
a Real Contract.
Watson Windows structures weekly, bi-weekly, and monthly contracts for offices, retail centers, restaurants, medical facilities, and property portfolios across Columbia, SC.
Our Work
Results That Speak




Ready to Book?
The Professional Shine
Is One Call Away.
Residential or commercial, one-time or on contract. Dennis responds the same day.