Your extension, built properly and guaranteed for ten years.
Extensions, load-bearing walls, slabs, walls and facades. A written quote after a site visit, the insurance certificate attached, and finished projects you can go and see.
Certificate attached
to the quote, then to the invoice
What protects you
The guarantees, written down before the first brick
Building work is covered by guarantees set by law. Here is what each one covers, and when it starts.
Ten-year insurance
For ten years after handover, it covers any damage that threatens the solidity of the work. The certificate comes with the quote.
One-year completion guarantee
For a year after handover, any defect you report is put right.
A written, detailed quote
Every stage priced, the VAT rate explained, a start date and a duration.
Handover in writing
We walk the site together and sign the handover report: that is the day your guarantees start.
For an extension or structural work, the law also asks YOU, as the owner, to take out building damage insurance (dommages-ouvrage) before the site opens. We give your insurer the documents it asks for.
What we build
Our masonry work
A starting price and how soon we can start, so you can plan before you call.
starts in 2 to 3 monthsHouse extension
A room on the ground floor, from the foundations to the walls ready for the roof, with the planning paperwork sorted before we dig.
from €900 per m²
starts in 3 to 5 weeksLoad-bearing wall opening
Open the kitchen onto the living room or create a bay window: propped, beam sized by an engineer, finished clean.
from €2,500
starts in 2 to 4 weeksConcrete slab and foundations
Garage, terrace, garden shed or extension: footings and slabs poured on a sound base, reinforced and level.
from €75 per m²
starts in 2 to 4 weeksBoundary and garden walls
Boundary walls, low garden walls and gate pillars, in block, brick or stone, rendered to match the house.
from €150 per linear metre
starts in 4 to 6 weeksFacade renovation and render
Cracks repaired, stone repointed, render redone: the facade cleaned up and protected for years.
from €45 per m²
starts in 3 to 6 weeksRetaining walls
Hold back a slope, create a level terrace or a driveway: a wall built to take the pressure of the ground.
from €300 per linear metre
From the first visit to the handover
How a job runs
Site visit and measurements
We come and see the site, take measurements and check the rules that apply: planning, co-ownership, access for the lorry.
Written quote
A detailed quote within a week, insurance certificate attached. Nothing starts until you have signed.
The works
A start date kept, a site tidied every evening, and a phone call if anything changes.
Handover
We check everything together and sign the handover report. Your guarantees start that day.
Past projects
Finished sites, near you
The town, the material, how long it took. Ask us, we will tell you which ones you can go and see.
Rezé25 m² extension in concrete block
2025
A kitchen-diner on the garden side, footings to wall plate, with the opening into the existing house.
NantesKitchen opened onto the living room
2025
A 4.2 m opening in a load-bearing wall, steel beam sized by an engineering office, brick wall kept on show.
VertouStone boundary wall and porch
2024
Thirty metres of stone wall rebuilt around an old porch, pointed with lime mortar.
CarquefouGarage slab and screed
2025
A 36 m² reinforced slab on a clay plot, then a screed levelled with the rule.
OrvaultStone facade repointed
2024
Cement joints removed, stone repointed with lime, cracks above the windows repaired.
Saint-Sébastien-sur-LoireRubble stone gate pillars
2023
Two pillars rebuilt on new footings, with a reinforced concrete core to hang a heavy gate.
Where we work
The towns where we can come and measure quickly. Further out, ask anyway: it depends on the size of the job.
Carquefou 44470
visit within 3 days
La Chapelle-sur-Erdre 44240
visit within the week
Nantes 44000
visit within 48 h
Orvault 44700
visit within 3 days
Rezé 44400
visit within 48 h
Saint-Herblain 44800
visit within 48 h
Saint-Sébastien-sur-Loire 44230
visit within 48 h
Vertou 44120
visit within 3 days
After the handover
What our customers say
"We wanted to open the kitchen onto the living room. He came with the engineer's calculation for the beam, propped everything, and the dust stayed behind the plastic sheeting. Four days, as announced."
Claire M.
Load-bearing wall, Nantes
"For our 25 m² extension, he told us straight away that a prior declaration was enough and helped us fill it in. The quote did not move by a single euro."
Julien and Sarah D.
Extension, Rezé
"The old stone wall along the road was leaning. He rebuilt it with lime mortar, like the original, and three neighbours asked for his number."
Bernard L.
Stone wall, Vertou
Free, no obligation
Tell us about your project
We call you back to arrange a visit: a masonry quote is priced on site, never from a photo alone.
The site address, to check the access for the lorry and the local planning rules
Rough sizes: square metres of extension, length and height of a wall
When you would like it done, so we can tell you honestly if we can
Rather talk it through? Call us on02 61 91 24 38