Hampshire · England

Sand mastic for sash & case windows in Brockbridge, Hampshire

Specialist sand mastic for Brockbridge: careful preparation, the right product and tidy work. Call for a quick quote.

  • Open joints round the window box
  • Tired mastic found when preparing windows for paint
  • Crumbling sand mastic round a window

Book sand mastic in Brockbridge

Sand mastic in Brockbridge

If your home is listed or in a conservation area, check with your local planning authority if consent is needed before window work. Like-for-like sand mastic is often the preferred finish. If you are dealing with crumbling sand mastic round a window and gaps round a timber door in stone or brick, we can put it right, on tenement windows, timber door frames and brick reveals alike.

Mastic can only go onto a dry, clean joint, so window work in Brockbridge is booked around the forecast. Let us know about access to all the frames, upstairs ones included.

Whatever the size of the job, you get the same 12-month guarantee.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Place
Brockbridge (SO32)
Region
Hampshire
Guarantee
12 months on all our work
Quote
A clear price before work begins
Phone
0345 464 0079
Updated
26 October 2026

Quotes for sand mastic in Brockbridge

For a quick quote, just ask. The main things that affect it are:

  • The number of rooms or windows
  • Any working-time requirements on site
  • The amount of work
  • The product the joint needs

A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.

Asking for a quote

You don’t need to know the technical terms. Just tell us:

  • The type of property
  • The rough size of the job
  • What’s wrong with the joints now
  • Any previous sealing or DIY work

Every job is quoted individually, so the first step is telling us about yours. Simply phone 0345 464 0079 or email us and describe the job and send photos if you have them.

FAQs for Brockbridge

Is there a guarantee on sand mastic in Brockbridge?

Every job comes with our one-year guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.

Can you do sand mastic in Brockbridge?

Yes. Our work covers London and the South East, and Brockbridge is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we will send you a clear quote.

What do you need from me for a quote?

Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.

Can you quote for more than one area?

Yes. Just list everything you need and we’ll quote it together.

Should I check with the council before work on a listed or conservation-area home?

Speak to your local planning authority before work starts. Sand mastic is often favoured as like for like, but they decide.

Do you work for landlords and businesses?

Yes, regularly. Several properties can be quoted together.

Can I choose the sealant colour?

Generally, yes. White, clear and grey are common, and other colours are available, and we’ll agree it with you first.

Are you insured?

Yes. Full insurance covers our work, and we can confirm the details when we quote.

Landlords, agents and businesses in Brockbridge

We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.

Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.

Looking after it afterwards

Simple care keeps the joints in good condition. We recommend:

  • Find out about consent before window work on a listed home
  • Ask a joiner to look at soft timber first
  • Clear gutters so water does not pour onto the windows
  • Look over the window mastic once a year

Don’t run silicone over the new mastic. If anything cracks, get it looked at before trying a quick fix.

Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.

Why it’s worth doing now in Brockbridge

Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic suits the building and blends with the stone or brick. In a small place like Brockbridge, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.

Doing several joints on one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.

Why us?

  • More than 20 years in sealant work
  • Trusted Arbo and Everbuild sealants
  • Experience in homes, commercial sites and hotels
  • Neat joints and a tidy finish

See how sealant jobs are priced and what customers say.

Common problems we fix in Brockbridge

Sand mastic slowly weathers. It dries out, cracks and loses its grip from the frame or the masonry.

The most common problems we see are:

  • Window mastic to renew ahead of painting
  • Modern sealant on a period surround
  • Wind and rain getting in round a sash window
  • Gaps round a timber door in stone or brick

For an older house near a landmark such as Church of St Mary and All Saints, the joint between an old wall and a newer frame is normally the first place rain gets in.

What to look for in a quote

  • Whether the sealant suits the joint
  • Whether all the old sealant comes out first
  • Is VAT in the price?
  • How the joint is cleaned and prepared

10 questions to ask before you book

Brockbridge homes and the weather

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 Meonstoke Church of England Infant School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.

Brockbridge is about 4 miles east of Bishop's Waltham, in Hampshire. Anywhere in SO32, our applicators can take on sand mastic. Our Hampshire coverage runs to 683 places, and Brockbridge is one of them. For nearby work, see our Portsmouth page (11 miles or so).

All of SO32 is covered for sand mastic, from the main roads to the quietest streets. If you need sand mastic at a property on Mill Lane, Union Lane and High Street or a nearby road, our applicators can take on the job. With the A32 close by, Brockbridge is easy for our applicators to reach for sand mastic. Nearby, we also carry out sand mastic in Droxford (1 mile south-west), Meonstoke (1 mile north-east), Corhampton (1 mile north), Exton (1 mile north) and Soberton (1 mile south). Further out, we also cover Winchester (10 miles north-west), Gosport (11 miles south), Havant (10 miles south-east), Eastleigh (9 miles west), Fareham (8 miles south) and Horndean (7 miles south-east).

Around Brockbridge

Locally, jobs take us to homes and businesses close to The Bakers Arms, among other places. Other landmarks nearby include Bishop's Waltham Museum (3.7 miles west). Green spaces nearby include St Clair's Meadow and Beacon Hill.

Map of Brockbridge © OpenStreetMap contributors

What happens on the day

When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a single window, longer for several. Somewhere as small as Brockbridge, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. We check the window surrounds and agree which joints need renewing.
  2. We rake out the old mastic and clean the joint.
  3. We pack any deep gaps so the mastic sits at the right depth.
  4. Sand mastic is mixed and applied by hand, then shaped to the joint.
  5. We dress the surface so it sits neatly against the masonry.

Preparing for the visit

  • Keep pets and children clear of the area while we work
  • Let us know about stairs, lifts or work at height
  • Mention any sign-in or site rules at work premises

Get a quote

A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.

Get a quick quote

Related advice

What we cannot put right

We’ll always be straight with you, so here’s what sealant can’t fix:

  • Decisions on consent for listed homes
  • Sash cords, weights and draught-proofing of the sashes
  • Decayed frames that need repair

If you are not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer before booking.

Surfaces we seal

  • Period & listed homes
  • Brick reveals
  • Sash and case windows
  • Tenement windows
  • Timber door frames
  • Stone surrounds
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job