Black Diamond Pressure Washing

Professional Pressure Washing —

Seacoast & Southern NH

We restore driveways, roofs, siding, and decks across Portsmouth, Dover, Manchester, and surrounding New Hampshire communities. Fully insured. Free quotes. Spring slots filling fast.

Request a Quote

Local Guys Who Take Pride in Their Work

Hello! We're Gabe and Connor — two New Hampshire locals who built Black Diamond Pressure Washing because we saw a gap in the market for a pressure washing company that actually shows up on time, does the job right, and treats your property like it's their own. Gabe grew up in Barrington, NH and knows New England homes inside and out. Connor moved to NH in 2014 and brings a detail-first work ethic to every job. Together, we've have experience with numourous properties across the Seacoast, Northern, Southern NH. When you hire us, you get the two of us — not a subcontractor.

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Our Process

Your satisfaction is our top priority. With our expert team, transformative cleaning services, and commitment to quality, we'll revitalize your property's exterior and help you fall in love with your home all over again.

01

Request a Quote

Begin by filling out our simple online form or contact Connor or Gabe directly via email pr phone to request a quote.

02

Customized Consultation

Once we receive your request, our team will promptly get in touch with you to schedule a personalized consultation.

03

Professional Service Delivery

Our highly skilled professionals will arrive at your location at the scheduled time equipped with top-tier materials and specialized equipment.

04

Quality Assurance

We conduct a thorough quality check to ensure the work meets our standards. Your satisfaction matters to us, so we encourage feedback at this stage.

Request a Quote

Fill out our quick online form or call (603) 978-8327. We respond within 1 business hour.

Customized Consultation

We'll assess your property in person or via photos and provide a clear, no-obligation estimate. No surprise fees. No pressure.

Professional Service Delivery

Our team arrives on time with professional equipment and eco-friendly cleaning solutions. We protect your landscaping and leave your property spotless.

Quality Assurance

We do a final walkthrough with you. If anything isn't right, we fix it — no questions asked.

Before

After

Before

After

Before

After

Black Diamond Pressure Washing Services

Exterior Pressure Washing & Soft Washing

Restore and protect your property's exterior with our professional-grade cleaning solutions. We specialize in comprehensive surface restoration, using advanced techniques to remove dirt, grime, mold, and environmental buildup while preserving the integrity of your surfaces.

Exterior Roof Cleaning

Protect your home's most critical barrier with our specialized roof cleaning service. Our soft wash technique safely removes algae, moss, and stubborn stains without damaging delicate roofing materials. We use eco-friendly solutions that not only clean but help prevent future growth, extending the life of your roof and improving its overall appearance.

Roof & Siding Soft Wash

Gentle yet powerful cleaning for your home's most visible surfaces. Our soft wash method uses low-pressure techniques and specialized cleaning solutions to thoroughly clean roof and siding materials without the risk of damage. We remove organic growth, dirt, and environmental pollutants, restoring your home's original beauty and protecting it from potential long-term damage.

Driveway & Sidewalk Cleaning

Eliminate years of built-up dirt, oil stains, and grime from your concrete surfaces. Our high-pressure power washing service completely transforms driveways and sidewalks, removing tough stains and restoring their original clean appearance. We use precision techniques to ensure a thorough clean without damaging the surface integrity.

Fence Cleaning & Restoration

Breathe new life into your wooden, vinyl, or metal fences. Our specialized cleaning process removes years of dirt, mildew, and weathering, bringing back the original color and texture of your fence. We provide careful cleaning and restoration that protects your fence from future damage and enhances your property's overall appearance.

Window Cleaning

Crystal-clear windows that shine from the inside out. Our exterior window cleaning service removes dirt, water spots, and environmental buildup, leaving your windows sparkling clean. We use professional-grade tools and techniques to ensure a streak-free finish that enhances your home's overall appearance and allows more natural light to enter.

Expertise and Experience

Quality Materials and Techniques

Customized Approach

Attention to Customer Satisfaction

Reliability and Trustworthiness

300+

Homes

Years In Business

10+

Services

95%

Client satisfaction

Frequently Asked Questions

How far in advance should I book?

Spring and summer fill up fast — we recommend 1–2 weeks ahead. Off-season we can often do same-week. Call (603) 978-8327 to check availability.

How much does pressure washing cost?

We give free, no-obligation estimates — contact us for an exact quote.

Will pressure washing damage my siding or roof?

Not with us. We use the right pressure setting for every surface. Roofs and siding get our soft wash method — low pressure, specialized solution — which is gentler than a garden hose but far more effective.

Do I need to be home during the service?

No — as long as we have access to an outdoor water spigot and can reach the areas being cleaned, you don't need to be present. We'll send before/after photos when we're done.

How long does a typical job take?

A driveway clean is 1–2 hours. A full house soft wash is 2–4 hours. We'll give you a time estimate when we quote the job so you can plan accordingly.

Do you serve my town?

We cover the Seacoast, Southern, and Northern NH including Portsmouth, Dover, Durham, Exeter, Hampton, Barrington, Rochester,