Real results

The kind of clean your neighbors will notice.

NH winters are hard on driveways, roofs, and siding. We use the right pressure setting and method for every surface. Soft wash for roofs and siding, high pressure for concrete.

Aerial view of Black Diamond soft washing a large stone-front home in NH

Aerial view of a freshly soft-washed home exterior in Seacoast NH

Aerial view of soft wash roof cleaning in New Hampshire

Services

What we clean.

House and siding soft wash

Low pressure cleaning that removes algae, mildew, and buildup without damaging siding, paint, or caulking.

Roof soft wash

Eco friendly solution applied at low pressure. Removes moss, algae, and black streaks without voiding your roof warranty.

Driveway and concrete cleaning

High pressure power washing that lifts oil stains, tire marks, and years of NH road grime from concrete and asphalt.

Deck, fence and window cleaning

Surface specific methods that restore wood, vinyl, and metal without damage. Streak free window finish guaranteed.

Why BD

You get Gabe and Connor. Not a crew you have never met.

We started Black Diamond because we kept hearing the same complaint. Companies send whoever is available that day. With us, the co-owners show up to every job. That is not a sales line, it is just how we operate.

Gabe and Connor, owners of Black Diamond Pressure Washing NH

What customers say

Straight from Google.

★★★★★

I'd highly recommend Black Diamond Pressure Washing. Gabe and Connor were professional, efficient, and incredibly easy to work with. The clarity of their initial proposal and the final outcome were perfectly aligned. What impressed me most was the level of care and attention they showed. When they left, you wouldn't have known they were even there, other than how clean the houses looked. I will definitely be using them again.

Jesse Antosiewicz

Google Review

★★★★★

Exceptional work! Very hard workers and don't stop until the job is done. I recommend to all!

James Noble

Google Review

★★★★★

I found Black Diamond through a few friends that had work done in the past and they had loved it. Once they came to check the property you could see the pride and care they take into their work, down to the professionalism and honest pricing. The house has never looked as good as it does now and we couldn't be happier. I will definitely be referring all of our friends.

Zackary Ridlon

Google Review

★★★★★

Gabe was the perfect person for the job, he got straight to the point and told me exactly what he was going to do and how much it would cost. 5 stars all the way.

Wyatt Gordon

Google Review

★★★★★

Highly recommend their services, soft wash or pressure wash, they do it right.

Riley Smith

Google Review

Professional pressure washing that actually shows up.

The kind of clean your neighbors will notice.

What we clean.

You get Gabe and Connor. Not a crew you have never met.

Straight from Google.

Summer slots go fast in NH.