Buckinghamshire · England
Sand Mastic in Terriers
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Terriers and across Buckinghamshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Wind and rain getting in round a sash window
- Old cement repairs round a window that have failed
- Weathered mastic on the most exposed windows
About our sand mastic in Terriers
Traditional burnt sand mastic that sits naturally against stone and brick. It’s a good fit for period properties, where modern sealant can look out of place. Common call-outs are for wind and rain getting in round a sash window and mastic that needs renewing before redecorating, on sash and case windows, period & listed homes and brick reveals.
In smaller places like Terriers, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. Each frame material needs the right sealant against the right wall.
A 12-month guarantee comes as standard.
- Location
- Terriers (HP13, HP15)
- Wider area
- Buckinghamshire
- Guarantee
- One year on every job
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Frames and glazing around Terriers
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Hughenden Manor (about 1.1 miles north-west) nearby, there’s older building stock in the area around Terriers as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Letting a property close to High Wycombe station? Then older sash windows in a rental need their mastic kept sound to keep the weather out. If you live in an older home near Church of Saint Francis, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Terriers is about 1 mile north-east of High Wycombe, in Buckinghamshire. Every kind of property in Terriers is covered for sand mastic, old or new, large or small. The work is guaranteed for a year. 263 places in Buckinghamshire are on our list. We also work in Reading, about 17 miles from Terriers.
Every address in HP13 and HP15 is covered for sand mastic, from the main roads to the quietest streets. If you need sand mastic at a property on Terry Road, Perth Road and Green Road or a nearby road, our applicators can take on the job. Other places close to Terriers include Totteridge (1 mile south-east), Four Ashes (1 mile north), High Wycombe (1 mile south-west), Micklefield (1 mile south-east) and Hazlemere (1 mile north-east). We also work in nearby towns such as Aylesbury (13 miles north), Chesham (7 miles north-east), Marlow (5 miles south), Amersham (6 miles north-east), Beaconsfield (4 miles south-east) and Chalfont St Peter (8 miles east).
Landmarks near Terriers
In Terriers, that means homes and buildings near The Tower, The Dolphin Eye pub and Highworth Combined School and Nursery, among other places. For rail, the closest station is High Wycombe station, roughly 1 mile south-west. Nearby you will also find Hospital of St John the Baptist (1.1 miles south) and High Wycombe Castle (1 mile south-west). For a walk, there’s Gomm's Wood.
Your questions about sand mastic in Terriers
Is Terriers in your area for sand mastic?
Yes. We work across London and the South East, and Terriers is part of that. Just phone 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.
Is Terriers within the area you cover?
Yes. Terriers is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Are you ARBOMaster approved?
Yes. We’re approved under the ARBOMaster scheme.
Are you fully insured?
Yes. Full insurance covers our work.
Can I choose the sealant colour?
Most of the time, yes. We will explain which colours are available and agree one before we start.
Where are you based?
We work from Crawley. Our applicators cover Terriers, along with the rest of our area.
Which is right for my windows, sand mastic or modern sealant?
For period timber windows in stone or brick, sand mastic is often the better fit. On modern frames, we’d normally use a flexible sealant, and we will explain why.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Landlords and agents in Terriers can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
Quotes for sand mastic in Terriers
Jobs vary more than people expect. The main factors:
- The old material and how stubborn it is
- The amount of work
- Any working-time requirements on site
- The product the joint needs
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What to tell us for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- If it’s domestic, commercial or a hotel
- Access, such as stairs, a lift or height
- Whether it has been sealed before
- A few photos by email, if you can
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
Keeping the joints in good condition
So the new joints stay in good condition:
- Plan mastic work ahead of painting
- Avoid patching sand mastic with silicone
- Ask the planning authority about consent for listed or conservation-area homes
- Go gently near the mastic when preparing windows
Avoid sealing over the mastic with silicone. If you see a crack, ask us to take a look before trying a quick fix.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
Why it’s worth doing now in Terriers
Not every filler suits an old window surround. Sand mastic is the like-for-like choice and that can be important for listed homes. In an older home around Terriers, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or send us an email.
What you get with us
- Neat joints and a tidy finish
- Arbo and Everbuild products
- Homes, businesses and hotels
- We never seal over old sealant
See our cost guide and our reviews.
The process
At the end, we look at the finished work together and explain the cure time. The work normally takes anything from a few hours to a full day, depending on how many windows, depending on how much there is to do. Parking around Terriers is usually easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Getting ready for the visit
- Clear items away from the joints we’re working on
- Mention any parking rules near the property
- Tell us about any previous sealing or DIY attempts
Get a quote
We quote each job on its own, so start by telling us what you need. Simply call 0345 464 0079 or drop us an email and describe the job.
Advice
Also near Terriers
More services for Terriers
Common problems we fix in Terriers
Water gets into small cracks in the mastic and loosens it further. Windows facing the weather tend to go first.
Most people get in touch when they notice one of these:
- Cracked mastic round a front door frame
- A silicone bead on a sash window that spoils the look
- Gaps where the frame meets the masonry
- Draughty sash windows at the surround
Managing a site like The Royal Grammar School? Then the mastic around its windows and doors needs looking after like any other building’s.
What your quote should include
- Are they insured?
- How the colour is chosen
- What happens if the job turns out different
- How the surfaces are prepared before sealing