Roof washing is one of the most neglected tasks for property owners across Concord, CA. Concord is a city in Contra Costa County located at the southeastern base of Mount Diablo. Concord features warm, sunny summers and chilly, damp winters with high pollen counts and windblown debris. These conditions create the perfect breeding ground for moss, algae (Gloeocapsa magma), lichen, and dark streaks to grow on a roof.
Left untended, organic buildup on a roof can wreak havoc on the property owner’s finances and the curb appeal of their investment. Moss produces moisture that adheres to asphalt shingles and concrete tiles, shortening the lifespan of the roofing material. A roof wash service removes the unwanted organic growth, prolonging the life of the roof.
Below are the five best commercial and residential roof washing companies in Concord, CA.
1. JNS Power Washing—Premier Exterior & Roof Soft Washing Company
Our first recommendation is JNS Power Washing, a professional exterior cleaning and roof washing company that serves Concord, Walnut Creek, and the East Bay. JNS Power Washing has an excellent reputation for their meticulous soft wash technique and eco-conscious services. As a locally owned business, they understand the pressure needed to clean the various materials used for home and building exteriors.
Using excessive pressure on a roof can strip asphalt shingles of their protective granules, and crack concrete tiles on a commercial or residential building. JNS Power Washing utilizes a low-pressure soft wash technique on roofs to eliminate damaging moss, lichen, and black algae from the surface. Specialty detergents and high-pressure water jets are used to break up and remove unwanted organic buildup on the roof.
JNS Power Washing performs low-pressure roof washing for concrete tile residential roofs and large-scale commercial roofs around downtown Concord. Their staff is experienced and certified to handle all aspects of exterior pressure cleaning while providing customer satisfaction guarantees and flexible payment plans.
Services Offered by JNS Power Washing
- Low-Pressure Soft Wash: The gentle yet powerful cleaning solution is suitable for asphalt shingles, concrete tile, and clay tile roofing materials. The low-pressure roof wash eliminates black streaks and discoloration on a roof.
- House Soft Washing: The low-pressure exterior cleaning solution is appropriate for stucco, painted wood, and vinyl siding.
- Driveway, Stone & Hardscape Cleaning: The high-pressure water jet is used to remove oil residue and dirt from concrete, stucco, and wood surfaces.
- Solar Panel Cleaning: A specialized deionized pure water rinse is used on solar panels to remove debris and enhance the performance of the panels.
- Gutter & Downspout Cleaning: The clogging in gutters is cleared of debris from the roof to prevent water damage to the home’s foundation.
- Commercial Building & Roof Cleaning: Scheduled pressure washing plans for commercial buildings and large-scale residential projects.
2. Concord Power Wash & Roof Care
Concord Power Wash & Roof Care is a professional residential and commercial exterior cleaning company that serves the Concord region and the larger Contra Costa county. They specialize in low-pressure washing of asphalt shingle and tile roofs.
Concord Power Wash & Roof Care uses customized detergents to break up moss and black algae on a roof without damaging the shingles or tiles. The company guarantees full pre-inspection and preparation services of the garden before the initiation of any pressure washing procedure.
Services Offered by Concord Power Wash & Roof Care
- Soft washing of asphalt shingle and tile roofs
- Gutter cleaning and flushing service
- Concrete driveway pressure cleaning
- Commercial building exterior maintenance
3. East Bay SoftWash Solutions
East Bay SoftWash Solutions is a professional residential pressure washing company that offers low-pressure roof moss and algae cleaning in Concord, Pleasant Hill, and Martinez. East Bay SoftWash Solutions is known for their exceptional client communication and customer satisfaction.
East Bay SoftWash Solutions technicians evaluate the roofing material before the commencement of the pressure washing service. Based on the material type, a customized detergent mixture is prepared to eliminate black algae and moss growth from the roof.
Services Offered by East Bay SoftWash Solutions
- Low-pressure roof moss and lichen removal
- Whole-house soft wash siding cleaning service
- Deck, fence, and patio surface cleaning
- Solar panel rinse and clearing
4. Diablo Valley Pressure Cleaning
Diablo Valley Pressure Cleaning is a full-service residential pressure washing company that provides exterior maintenance services in Concord and throughout the Diablo Valley. Diablo Valley Pressure Cleaning owns commercial-grade truck-mounted pressure washing equipment to provide roof washing and hardscape cleaning services.
The company has extensive expertise in soft washing delicate surface materials such as shingles, stucco, and wood, and using high-pressure water jetting on concrete flatwork and paverstones.
Services Offered by Diablo Valley Pressure Cleaning
- Residential and commercial roof soft wash cleaning
- Driveway and sidewalk pressure washing
- Exterior wall and stucco dirt and mold removal
- Gutter cleaning and downspout flushing
5. AquaBrite Exterior Cleaning
AquaBrite Exterior Cleaning is a residential exterior pressure cleaning company that serves local property owners in Concord and throughout the Contra Costa county. AquaBrite Exterior Cleaning also offers single service visits and bundled exterior maintenance plans for complete roof and house washing.
AquaBrite Exterior Cleaning uses environmentally safe and biodegradable detergents to provide low-pressure roof tile cleaning and surface restoration. The thorough cleaning process kills the black algae on the roof, preventing it from spreading to the neighboring tiles.
Services Offered by AquaBrite Exterior Cleaning
- Low-pressure tile and composite roof cleaning
- Residential siding washing and house cleaning
- Concrete and patio hardscape pressure washing
- Window cleaning and glass track rinsing
Soft Washing Versus High-Pressure Washing for Roofs
It is essential to distinguish between soft washing and high-pressure power washing since the latter can cause severe damage to the roof and void the manufacturer’s warranty. Below is a comparison between the two methods of roof washing.
Comparison Between Soft Washing and High-Pressure Power Washing
| Parameter | Soft Washing | High-Pressure Power Washing |
| Equipment | Low-pressure water jetting | High-pressure water jetting |
| Pressure level | Below 500 PSI | 1,500 – 4,000+ PSI |
| Cleaning method | Detergents and water to penetrate and kill the root of moss, algae, and lichen | High-velocity water to strip away the dirt |
| Suits | Asphalt shingles, clay tiles, concrete tiles, and slate | Concrete driveway, brick, steel, and unpainted wood |
| Damage risk | No risk of granule loss and roof damage | Risk of granule loss and roof damage |
Why Roof Washing Service is Necessary in Concord, CA
Roof washing is a critical maintenance practice for residential and commercial building owners in Concord, CA. The benefits of roof washing include:
1. Increasing the lifespan of the roofing material
The roof is exposed to the elements, and moss, algae, and lichen feed off the minerals in the roofing material. Moss grows in the cracks of the shingles and tiles, providing shelter for moisture buildup. As a result, the roofing material deteriorates prematurely and requires a complete replacement.
2. Eliminating expensive repairs
Moss, algae, and lichen infestation on a roof cause cracks and crevices, which allows water to penetrate inside the structure. The continuous dripping on the ceiling can cause staining, rotting, and mold infestation. Low-pressure roof washing eliminates these problems and keeps water running off the roof.
3. Reducing cooling costs
Dark black streaks and spots on the roof absorb heat rather than reflect it. The increased heat raises the temperature in the house, especially during the summer months. The roof washing service removes the dark algae streaks, reflecting the sunlight and reducing the cooling costs.
4. Maintaining a clean and beautiful home
Most insurance companies and homeowners association (HOA) have regulations concerning roof moss and algae buildup. Failure to maintain a clean roof can result in hefty fines or cancellation of the property owner’s insurance policy.
Environmental Protection and Landscape Protection Measures
An experienced roof washing company utilizes environmental protection measures and special detergents to ensure the safety of the surrounding landscape and comply with the EPA regulations.
Prevention measures against plant damage
- Watering the flower beds and gardens before and after the roof washing procedure
- Targeted application of detergents and water to prevent overspray on the plants
- Use of biodegradable and eco-friendly detergents to reduce damage to plants
Key Considerations When Hiring a Roof Washing Company
Before hiring a roof washing company, homeowners should ask the following questions and conduct due diligence.
- Does the contractor use low-pressure water jetting equipment?
Ensure that the contractor does not use high-pressure roof washing equipment that can damage the shingles and tiles. - Is the contractor insured and licensed?
Always confirm that the contractor has general liability insurance, and workers’ compensation to protect you against work-related injury. - Does the contractor employ plant protection measures?
Inquire whether the technicians utilize pre-soaking or rinsing to prevent damage to the plants and flowers around the house. - Does the contractor provide a written estimate?
Request a written estimate of the costs and the square footage of the surface to be cleaned.
Final Remarks
Hiring a professional roof washing company is an investment in the long-term value of the home. Roof washing removes the organic buildup on the roof and prevents it from damaging the roofing material. The service also enhances the beauty of the home and reduces the energy costs.
In Concord, CA, JNS Power Washing is the best roof washing company because of their excellent reputation in the community and the use of low-pressure roof washing equipment. JNS Power Washing technicians are factory trained and certified to provide exterior maintenance services such as house washing, gutter cleaning, and roof moss removal. JNS Power Washing uses advanced low-pressure soft wash cleaning technology and environmentally friendly detergents to kill the root of the problem. To schedule a free estimate and inspection of your roof, contact JNS Power Washing today
