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GREYSTONE
Contracting Co.
Additions & Structural
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More house, and no seam you can see from the road.

Agrandissements et structure · 8–12 weeks

Additions are judged on two things: whether the tie-in looks original, and whether the floors line up. Both are decided in the first week, at the footings.

01 / Overview

What the job actually involves.

We handle the survey, the engineer, the permit and the inspections. You get one schedule that includes their lead times instead of finding out about them later.

Roof lines, window heights, siding reveal and floor levels are matched to the existing house — and where the old house is out of level, we tell you which way we intend to split the difference.

Included in every quote
  • Survey, engineered drawings and permit applications handled by us
  • Excavation, footings and frost walls to local frost depth
  • Beams, columns and load-bearing wall removals, engineer-stamped
  • Roof and siding tie-ins matched to the existing house
  • Full interior finishing by the same crew that framed it
Typical duration
8–12 weeks
02 / How this service runs

Four stages, priced and dated in the estimate.

01

Feasibility

Consultation

Setbacks, soil, structure and budget range before you pay for drawings.

02

Drawings

Estimation

Engineered plans, permit submission, and a fixed line-item price.

03

Build

Réalisation

Footings, frame, dry-in, then mechanicals and finishing. Weekly photo update.

04

Delivery

Livraison

Final inspection, deficiency list, two-year workmanship warranty.

03 / Examples

Two of ours, first day and last.

Sunroom addition on the bay, Pointe-Verte, after
Sunroom addition on the bay, Pointe-Verte, before
Before
After
AdditionWork order No. 0433

Sunroom addition on the bay, Pointe-Verte

Sixteen feet of glass carried on a flush LVL beam.

Read the project
Garage & breezeway, Nigadoo, after
Garage & breezeway, Nigadoo, before
Before
After
StructuralWork order No. 0388

Garage & breezeway, Nigadoo

New frost walls tied into a 1970s slab without a step.

Read the project
04 / Questions

The ones we get asked most.

Anything not here, call the shop. Marc answers his own phone between site visits.

Do I need an engineer?

For anything carrying load — beams, second storeys, wall removals — yes, and we arrange it. The stamped drawing protects you at resale, not just at inspection.

How long do permits take here?

Two to six weeks depending on the municipality and whether a variance is needed. We submit and follow up; you get copies of everything.

Can you build in winter?

Footings go in before frost. Framing and dry-in continue through winter under tarps; excavation waits for spring if we miss the window.

Will the addition look added-on?

Not if the roof pitch, reveal and window heads match. We mock up the tie-in on site and photograph it from the street before we sheath.

Send us the short version of your project.

A reply within one business day, and a real estimate after we have seen the space.