Surrey · England

Sand Mastic in Normandy

Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Normandy, with a one-year guarantee on every job. Ask us for a quote.

  • Open joints round the window box
  • Silicone on a period window that looks wrong
  • Gaps round a timber door in stone or brick

Need sand mastic in Normandy?

DIY versus a professional finish

Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.

What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.

Sand mastic for homes and businesses in Normandy

Silicone on a period window often looks wrong and does not suit the building. Sand mastic is the traditional choice and we can swap the silicone for it. Typical jobs include old cement repairs round a window that have failed and gaps between timber frames and stone or brick, on brick reveals, tenement windows and sash and case windows.

Somewhere as small as Normandy, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.

Our work is backed for twelve months, in Normandy and everywhere else we cover.

Place
Normandy (GU3)
Wider area
Surrey
Guarantee
12 months on all our work
Quote
A clear price before work begins
Call
0345 464 0079
Last updated
26 October 2026
Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house

Leave it or put it right?

Draughts round a sash window are not always the sashes. Gaps between the frame and the wall can be just as bad and new mastic seals them. In a small place like Normandy, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.

What you get with us

  • We are fully insured
  • Every job guaranteed for a year
  • Anti-fungal silicone where joints get wet
  • 4.9 on Google from 180+ five-star reviews

Read our cost guide and our reviews.

Quotes for sand mastic in Normandy

Your quote is based on your job. We look at:

  • Whether old sealant or filler has to be cut out
  • Which sealant suits the joint
  • The number of rooms or windows
  • How easy the joints are to reach

There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.

Helping us quote

The more you tell us, the more accurate the quote. When you ask for a quote, tell us:

  • A few photos by email, if you can
  • What’s wrong with the joints now
  • Whether it has been sealed before
  • How many joints, rooms or windows are involved

For sand mastic in Normandy, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.

Landlord and commercial work in Normandy

Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.

In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.

Signs you need sand mastic in Normandy

Over the years, sand mastic weathers. It dries out, cracks and loses its grip from the frame or the masonry.

Any of these means the joints need attention:

  • Draughts and rain around sash boxes
  • Window mastic to renew ahead of painting
  • Gaps where the frame meets the masonry
  • Gaps round a timber door in stone or brick

Letting a property close to Wanborough station? Then any sash windows need sound mastic to keep draughts and rain out.

Before you book anyone

  • What the cure time is
  • What insurance they hold
  • How the joint is cleaned and prepared
  • Whether you can choose the colour

Our hiring checklist

Windows and doors in Normandy

Historic houses like Wanborough Manor (about 1.6 miles south) are a reminder that the area around Normandy has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

Schools such as Wyke Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. For an older house near a landmark such as Church of St Mark, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Normandy is about 4 miles east of Aldershot, in Surrey. Normandy gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Normandy is one of 395 places in Surrey where we work. Our Reading page covers work nearby.

Jobs for sand mastic in GU3 is quoted and booked the same way as anywhere else. If you need sand mastic at a property on Manor Farm Close, Guildford Road and Milton Close or anywhere close by, our applicators can take on the job. Neighbouring places we cover for sand mastic include Willey Green (1 mile east), Flexford (1 mile south), Christmas Pie (1 mile south), Wyke (1 mile west) and Wanborough (2 miles south). Within a short drive, we also cover Guildford (4 miles east), Woking (6 miles north-east), Camberley (6 miles north-west), Farnham (6 miles south-west), Egham (13 miles north-east) and Walton-on-Thames (14 miles north-east).

Landmarks near Normandy

Typical jobs here are in homes near Duke of Normandy pub. The nearest railway station is Wanborough station, roughly 0.7 miles south of the centre. Other landmarks nearby include Ash Museum (2.1 miles west) and Guildford Hospital (2.6 miles east). The countryside around Normandy includes Hog's Back and Ash Ranges.

Map of Normandy © OpenStreetMap contributors

Normandy: your questions answered

Do you cover smaller places like Normandy?

Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Do you work for landlords with property near Wanborough station?

Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear quote.

Is sand mastic better than silicone for my windows?

For period timber windows in stone or brick, sand mastic is often the better fit. Modern frames normally suit a flexible sealant.

Are you an approved applicator?

Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.

Do I need to be at home?

If the work is inside, we need someone to let us in. Once we’ve agreed the job, you do not need to watch us work.

Will the old sealant be removed?

Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.

Do you do commercial work?

Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.

What does sand mastic cost?

There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You will get a clear quote before any work starts.

Aftercare tips

No joint lasts for ever, but care makes a real difference. Our tips:

  • Inspect the joints round the windows every year or so
  • Find out about consent before window work on a listed home
  • Keep modern sealant off the mastic
  • Leave the new mastic unpainted

Avoid painting over the new mastic, as traditional guidance advises. Ask us before any decorating around it.

An open joint round the box lets weather through. The longer it’s left, the more the joint opens.

How the visit works

We keep the work tidy and contained to the area we are working on. Expect the work to take anything from a few hours to a full day, depending on how many windows. In a small place like Normandy, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We check each window surround and the condition of the joint.
  2. We rake out the old mastic and clean the joint.
  3. Large voids are packed out.
  4. New sand mastic is applied and shaped by hand.
  5. The finish is dressed neatly.

Getting ready for the visit

  • Tell us about any previous sealing or DIY attempts
  • Tell us about access, such as stairs, a lift or high-level joints
  • Keep pets and children clear of the area while we work

How to get a quote

Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we will explain what’s involved and send you a clear quote.

Ask for a quote

Advice

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job