Pressure washing business operations: Calgary job sites

What to take away

What the wash actually removes

Pressure washing business operations in Calgary start with knowing what a new home site leaves behind. A new Calgary home is not dirty the way a driveway is dirty. It carries construction dust, drywall compound mist, stucco overspray, concrete slurry and tape residue.

The wash removes what a builder's final clean cannot. Film on glass, mortar haze on brick, silt packed into window tracks.

Scope usually covers exterior walls, soffits, fascia, and garage doors. It also covers driveways, sidewalks, and exposed aggregate. Interior work stops at dust removal before flooring, and only when the builder asks for it.

Pressure and temperature matter more than detergent on most surfaces. Stucco and acrylic finishes take low pressure and a soft tip. Concrete takes higher pressure once it has cured. Vinyl siding and window frames take moderate pressure with a wide fan. A rotary surface cleaner speeds flatwork without leaving streaks.

Water source is the first question on site. Many Calgary new-build lots have no working hose bib until late in the build. You bring a tank, arrange a temporary connection, or draw from a standpipe the builder controls. That answer changes both your price and your day.

Residue removal is not cosmetic. Drywall dust and concrete slurry stain stucco permanently if they sit through a rain or a chinook melt. A wash done too late can mean a repaint, and a repaint is not your invoice.

Treat the wash as a scheduled trade, not a cleanup afterthought.

Timing the wash around cure and landscaping

Concrete cure is the hard constraint. New driveways, sidewalks and garage slabs need time before they take pressure. Cold Calgary weather slows cure, and a chinook can dry the surface while the slab is still green underneath. Washing too early scars the finish and voids the concrete contractor's warranty.

Stucco runs on its own clock. Alberta stucco and acrylic finishes cure over days, not hours, and stay soft longer in a cool, damp fall. A wash before full cure drives water into the base coat and leaves a chalky surface. Ask the builder's stucco trade when the finish is ready.

Landscaping sets the other boundary. Sod, fresh topsoil and young trees do not want a blast of dirty runoff. Wash before sod goes down where you can, or protect beds with poly and push runoff away from planting.

Grading and downspout connections should be finished so water leaves the lot.

The sequence on a Calgary new build runs like this.

A worked example: a 2,400 square foot two-storey in a northwest Calgary community. The driveway is poured in late August, the stucco trade finishes in early September, and the builder wants possession in mid-October.

That puts the wash window in late September to early October, after cure and before sod. If sod is already in, you protect it and price the extra time.

Scheduling is where small operators lose money. A crew that plans its jobs around cure dates and weather, rather than calling the builder the day it is free, keeps more of the contract value. Builders notice who shows up when promised.

Contracts with Calgary home builders

Builders buy on reliability and paperwork. A one-page agreement is enough if it covers scope, price, access, water, damage and payment. Verbal deals with a superintendent are common and risky. Get the contract from the builder's office, not the lot.

Put these in writing:

Pricing is usually per home, not per hour. For a Calgary new build, set the quote according to size, storeys, the amount of stucco and flatwork, and whether water is on site.

Two-storey homes with exposed aggregate driveways and full landscaping protection should be priced at the higher end of your rate card. Townhouse rows can be priced per unit, with a discount for shared walls and one setup.

Sample pressure washing quotes for this work should show a base price, a water surcharge when you tank in, and an hourly rate for waiting time caused by locked gates or late trades. Builders accept waiting charges stated up front. They resist surprise invoices.

Volume changes the math. A builder who gives you ten homes a year is worth a lower unit price than a one-off custom lot. Ask for a standing agreement with a rate card and a minimum notice period. That turns a run of one-off jobs into a route.

Post-construction washing is one of the most lucrative pressure washing services for operators who can hold a builder schedule, because the work repeats and the customer is a business, not a homeowner. It also feeds referrals to interior and garage work.

Alberta holdback and lien deadlines

Alberta's Prompt Payment and Construction Lien Act governs most private construction work in the province. It sets payment timelines and a holdback the owner must retain. For a washing subcontractor, holdback is money you earned but cannot collect yet.

The holdback is 10 percent of the contract price, or of the value of work done if the contract changes. The owner or general contractor holds it. It is released after the lien period expires, which for most private Alberta work is 60 days from substantial performance or the last supply of services.

Two deadlines matter to you. Give notice of a lien within 45 days of the last day you supplied services or materials on the site. Register the lien at the Alberta Land Titles Office inside the same 45-day window. Miss it and the holdback can be released without you.

Send a monthly statement of account to the builder. It creates a paper trail for the last day of supply, and it supports both your lien claim and your prompt payment claim if the builder goes quiet.

Price your jobs knowing 10 percent may sit for two months or more. A washing contract with a $4,000 exterior scope leaves $400 in holdback. Across ten homes that is real cash flow, so plan working capital around it.

If the general contractor is not paying, Alberta's prompt payment rules give you a path to interest and adjudication. That is not a reason to skip the paperwork. It is a reason to keep it.

Calgary licensing and the paperwork builders ask for

Calgary requires a business licence for most trades and services operating in the city, and pressure washing is no exception. You apply through the Business & local economy office, pay the fee, and renew annually. Working without one exposes you to fines and can end a builder relationship.

Wash water that carries concrete slurry, detergent or paint residue cannot go into the storm sewer. Many Calgary operators collect runoff or filter it before discharge, and some builders require a disposal plan in the contract. Confirm discharge rules with the city's sewer-use bylaw office and permit staff, and check the builder's own disposal requirements before you start.

Federal requirements sit on top of the municipal licence. You need a business number from the Canada Revenue Agency, and GST registration once you pass the small supplier threshold. Payroll for helpers means source deductions and coverage through the provincial workers' compensation board. A clear view of Permits, licences and regulations - Canada.ca saves guesswork before you bid.

The federal overview of permits and licences is a useful starting point for the paperwork side, including import rules if you buy equipment from outside Canada.

Keep documents in one folder: city licence, business number, GST account, workers' compensation clearance letter, insurance certificate and WHMIS training records. Builders ask for these before a new subcontractor comes on site. Having them ready shortens approval.

Dust, residue and site access

Construction dust is the main health issue on a new-build wash. Silica dust from concrete and mortar, drywall dust and paint overspray all go airborne when you spray. Wet the surface first where you can, and never dry-sweep a dusty floor.

CCOHS: WHMIS/GHS/SDS sets out the training and labelling requirements that apply to the cleaning chemicals you bring on site. Every product needs a current safety data sheet, and workers need WHMIS training.

Keep the SDS binder in the truck and a copy with the site superintendent. This is standard on Alberta construction sites and it gets checked.

Physical hazards are just as real. Wet concrete, hoses across walkways, ladder work on soffits and the pressure spray itself cause slips, falls and injection injuries. CCOHS: Physical covers the categories that matter here, including slips, falls, struck-by and pressure injuries.

Gloves, eye protection, non-slip boots and a two-person rule on ladders are cheap insurance.

Site access is a scheduling problem as much as a safety one. New-build lots are locked, trades overlap, and the superintendent controls the gate. Confirm your window the day before and again that morning. If the gate is locked when you arrive, document it and bill waiting time under the contract.

Protect finished work. Mask electrical boxes, cover light fixtures, and keep spray away from fresh paint and newly sealed driveways. Photograph the site before and after. Photos settle damage disputes and give the builder confidence for the next home.

How work flows through a builder site is predictable. The steps are:

A builder contract is more than a price. It is a repeatable business package: a defined scope, a rate card, a safety folder and a payment process. Build that once and Calgary's new-home market will keep it busy.

Common questions

Do I need a Calgary business licence to wash new homes?

Yes. The city requires a business licence for this work, and builders usually ask for a copy before they approve a subcontractor. Apply through the city's business licence office and renew annually.

When can I pressure wash a new concrete driveway in Calgary?

Wait until the concrete has cured and the concrete contractor confirms it is ready. Cold weather and chinooks extend that window, so ask the site superintendent for the pour date and work from there.

How much holdback applies to my washing invoice in Alberta?

The holdback is 10 percent of the contract price, held until the lien period ends, generally 60 days from substantial performance. Send monthly statements so your last day of supply is documented.

What happens if I miss the 45-day lien deadline?

You lose the right to register a lien for that work, and the holdback can be released to others. Alberta's Prompt Payment and Construction Lien Act sets the window, so confirm the dates that apply to your contract.

How work flows through a small operation decides whether builder work pays.