Question 1

What is the difference between soft washing and pressure washing?

Accepted Answer

Soft washing uses low pressure combined with specialized detergents to deeply remove mold, algae and dirt. It is ideal for house siding, roofs and delicate surfaces. Pressure washing uses high mechanical pressure to dislodge embedded dirt, and is better suited to robust surfaces like concrete, asphalt and stone. At Aqua-Net, we choose the appropriate method based on the surface to clean to guarantee optimal results without damaging your property.

Question 2

How often should I have my house washed?

Accepted Answer

We recommend having your house washed once a year to maintain its appearance and protect the siding. However, if your property is located near a body of water, in a wooded area or heavily shaded, washing every 6 months may be necessary as humidity promotes mold and algae growth. On Montreal's North Shore, the humid climate and significant temperature variations accelerate contaminant buildup. Regular washing extends your siding's lifespan and prevents costly damage.

Question 3

Is soft washing safe for my home and family?

Accepted Answer

Yes, soft washing is completely safe. We use specialized detergents that are safe for your family, pets and plants. The low pressure used does not damage siding, windows or seals. Before each intervention, we protect your plants, outdoor furniture and electrical outlets. Our technicians are certified and trained to use products safely. After rinsing, no product residue remains on your property.

Question 4

How much does house washing cost on the North Shore?

Accepted Answer

The cost of house washing varies based on several factors: house size, siding type, dirt level, accessibility and additional services (roof, deck, driveway). Generally, a residential house wash on Montreal's North Shore costs between $300 and $800. We offer combined packages that include multiple services at a reduced price. The best way to get an accurate price is to request a free quote, which we provide in 24h with no obligation. Call us at (514) 506-7043 or fill out our online form.

Question 5

Why are there black streaks on my roof?

Accepted Answer

Black streaks on your roof are caused by a bacterium called Gloeocapsa Magma, which feeds on the limestone granules in asphalt shingles. This bacterium, along with moss and lichen, thrives in humid climates like Montreal's North Shore. Besides the unsightly appearance, these organisms degrade your shingles, reduce their lifespan and can cause leaks. Aqua-Net's soft roof washing eliminates these organisms at the root with a biocidal treatment, without using high pressure that would damage your shingles.

Question 6

How to remove oil stains from my driveway?

Accepted Answer

Oil stains on a concrete or asphalt driveway can be stubborn, but our pressure washing method combined with an industrial degreaser effectively removes them. We first apply a specialized degreaser that dissolves the oil, then use high-pressure washing with rotary nozzles to extract the stain deeply. For very old stains, multiple applications may be necessary. Regular driveway washing prevents stain buildup and extends the surface's lifespan.

Question 7

How to maintain my wood deck after washing?

Accepted Answer

After washing your wood deck, it is important to apply a protector or stain to protect it against UV rays, humidity and rot. We recommend applying a transparent or semi-transparent protector that penetrates the wood rather than a surface coating that peels. On the North Shore, the climate requires application every 2 to 3 years. Between treatments, annual cleaning with a mild detergent and rinsing is sufficient. Avoid leaving heavy furniture in the same spot too long to prevent marks.

Question 8

Do gutter guards really work?

Accepted Answer

Gutter guards can reduce cleaning frequency, but no product completely eliminates the need for maintenance. Small leaves, seeds and fine debris can still accumulate. On Montreal's North Shore, where trees are numerous, we recommend gutter cleaning twice a year (spring and fall) even with guards. If you install guards, choose quality models and have them installed by professionals. Aqua-Net can clean, inspect and advise you on the best gutter protection options.

Question 9

What is the difference between commercial and residential washing?

Accepted Answer

Commercial washing involves larger surfaces, varied materials (glass facades, metal, concrete, brick) and requires specialized equipment and scheduling to minimize business disruptions. We offer evening and weekend services for businesses. Residential washing is more personalized and focused on delicate surfaces like house siding and decks. Aqua-Net is equipped for both types of services with teams and methods adapted to each context.

Question 10

What is the best season to wash your house?

Accepted Answer

On Montreal's North Shore, the best period for house washing runs from April to October. Spring (April-May) is ideal for removing winter residue and accumulated dirt. Summer (June-August) offers dry conditions and quick drying. Early fall (September-October) is perfect for preparing your home before winter. We do not recommend washing between November and March due to sub-zero temperatures that can freeze products and damage surfaces. Book early in spring for the best availability.

Question 11

Does my home insurance cover house washing?

Accepted Answer

House washing is generally considered preventive maintenance and is not covered by standard home insurance. However, if your roof or siding has suffered damage from a covered event (storm, fallen tree), the repair and resulting cleaning may be covered. We provide detailed invoices for your records. Additionally, regular maintenance can prevent damage that would require costly claims. Contact your insurer to confirm your coverage.

Question 12

Does house washing increase my property value?

Accepted Answer

Yes, house washing can increase your property value by 5% to 10%. According to real estate studies, curb appeal is a determining factor in the buying decision. A clean, well-maintained home gives an impression of quality and care. Professional washing removes stains, mold and discoloration that might suggest structural problems. If you plan to sell your home, a complete wash (siding, roof, driveway, deck) is the most profitable investment before listing.

Question 13

How to prepare my home's exterior for the Quebec winter?

Accepted Answer

The Quebec winter is harsh and can damage unprotected exterior surfaces. Here are the recommended steps: 1) Wash siding before the first frost to eliminate mold that could become embedded during winter. 2) Clean gutters after leaves fall to prevent ice dams that can damage the roof. 3) Treat the roof to remove moss and lichen that retain moisture and accelerate freeze damage. 4) Wash the driveway to remove salt stains that could become embedded. 5) Inspect soffits and fascia for signs of deterioration. Aqua-Net offers a complete fall package covering all these steps. Book before the end of October for the best availability.

Question 14

Should I wash or paint my siding?

Accepted Answer

Before considering painting or replacing your siding, a professional wash can often restore its original appearance. Mold, algae and dirt create an aging impression that disappears after soft washing. If your siding is vinyl, washing is always preferable to painting as vinyl is not designed to be painted. For painted aluminum or wood siding, washing can reveal whether the paint is still in good condition or needs repainting. In many cases, our clients postpone or cancel their painting projects after seeing our washing results. Washing also costs 5 to 10 times less than a complete paint job.

Question 15

Why clean soffits and fascia?

Accepted Answer

Soffits and fascia are often neglected but essential elements of your home. Soffits provide attic ventilation and fascia protect roof edges. When covered with mold, algae or insect nests, their function is compromised. Obstructed soffit ventilation can cause attic moisture problems, heat loss in winter and overheating in summer. Fascia damaged by mold can rot and require costly repairs. Aqua-Net cleans soffits and fascia with a soft washing method that removes all contaminants without risking forcing water under the siding. This operation is included in our complete house washing service.

Question 16

Should I seal my concrete driveway after washing?

Accepted Answer

Sealing your concrete driveway is highly recommended after professional washing, especially in Quebec where freeze-thaw cycles are destructive. A quality sealer penetrates concrete pores and creates a barrier against water, salt and oil stains. Without sealer, water penetrates the concrete, freezes in winter, and causes cracks and spalling. We recommend applying a penetrating transparent sealer every 2 to 3 years, ideally after pressure washing that opens the concrete pores. Aqua-Net can refer a qualified contractor for sealing, or include it in a complete package depending on the season.

Question 17

How long after washing can I stain my deck?

Accepted Answer

After professional washing of your wood deck, it is crucial to let the wood dry completely before applying stain or sealer. The drying time depends on several factors: wood type, sun exposure, temperature and ambient humidity. Generally, allow 48 to 72 hours of dry, sunny weather. To check if the wood is ready, sprinkle a few drops of water on the surface: if the water penetrates quickly, the wood is dry and porous enough to absorb the stain. If the water beads up, the wood is still too wet. A moisture meter can also give a precise reading (aim for less than 15% moisture). Applying stain on wet wood is the number one cause of premature peeling.

Question 18

Does mold on my house pose health risks?

Accepted Answer

Yes, mold and algae growing on your house siding can pose health risks, particularly for people with allergies, asthma or respiratory sensitivities. Mold spores can be carried by wind and enter your home through windows, doors and the ventilation system. Possible symptoms include: eye irritation, nasal congestion, sneezing, coughing and sore throat. Additionally, the bacterium Gloeocapsa Magma that causes black streaks on roofs can also contribute to degraded air quality. Regular professional washing eliminates these contaminants at the source and protects your family's health. On Montreal's North Shore, where humidity is high, we recommend annual washing to maintain a healthy environment.

Questions & Answers