Oxfordshire · England
Thrupp Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Thrupp. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Gaps round a timber door in stone or brick
- Old sand mastic that has cracked, crumbled or fallen out
- Wind and rain getting in round a sash window
Windows and doors in Thrupp
Historic houses like Blenheim Palace (about 2.5 miles west) are a reminder that the area around Thrupp 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. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In the older streets around Church of Holy Cross, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For landlords with property near Oxford Parkway station, any sash windows need sound mastic to keep draughts and rain out.
Thrupp is about 7 miles north-west of Oxford, in Oxfordshire. If you need sand mastic in Thrupp, it’s easy to get a quote: please call 0345 464 0079 or send us an email. We cover Oxfordshire from our Crawley base, Thrupp included. Across Oxfordshire, we cover 443 places, Thrupp among them. You can also see our page for Oxford, about 7 miles away.
Our applicators cover all of OX5 for sand mastic. If you’re just outside Thrupp, we cover Shipton-on-Cherwell (1 mile north), Begbroke (1 mile south-west), Bunkers Hill (1 mile north), Woodstock (2 miles west) and Bladon (2 miles west). Larger places within reach include Oxford (7 miles south-east), Bicester (8 miles north-east), Abingdon-on-Thames (11 miles south), Witney (9 miles south-west), Carterton (13 miles west) and Headington Quarry (7 miles south-east).
Landmarks near Thrupp
We work in homes and buildings around The Boat Public House. The closest station to Thrupp is Oxford Parkway station, roughly 2.7 miles south-east of the centre. Nearby you’ll also find Acland Hospital (5.7 miles south) and Soldiers of Oxfordshire Museum (2.4 miles west). Green spaces nearby include Hook Meadow and The Trap Grounds.
Sand mastic for homes and businesses in Thrupp
Silicone on a period window often looks wrong and does not suit the building. Sand mastic is the traditional choice, and we can replace one with the other. If you have modern sealant on a period surround and cement or filler used on old window joints that has cracked, we can put it right, whatever the surface.
Outdoor sealant needs dry, clean surfaces, so work on frames around Thrupp is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
We guarantee the work for a year. If something is not right with it in that time, tell us and we will put it right.
- Place
- Thrupp (OX5)
- Region
- Oxfordshire
- Cover
- 12 months on all our work
- Price
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Different surfaces, different methods
Brick reveals
We rake out the old mastic and pack deep voids before pointing.
Period and listed homes
Materials matter on listed and conservation-area homes. Like-for-like sand mastic is normally favoured.
Aftercare tips
So the new joints stay in good condition:
- Ask a joiner to look at soft timber first
- Make sure water runs off the sill
- Check the mastic when you check the paintwork
- Keep modern sealant off the mastic
Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.
Why it’s worth doing now in Thrupp
Filling over old, loose mastic does not last. Raking out and preparing the joint gives it a sound base so the new mastic stays put. Around Thrupp, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we’ll go through it with you.
Why book with us
- Anti-fungal sanitary silicone in wet areas
- Approved under the ARBOMaster scheme
- Experience in homes, commercial sites and hotels
- Trusted Arbo and Everbuild sealants
Read our cost guide or what customers say.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Damaged stone surrounds
- Timber that has rotted
- Whether work needs listed building consent
If you are not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
Where we work in Thrupp
- Brick reveals
- Period & listed homes
- Stone surrounds
- Sash and case windows
- Timber door frames
- Tenement windows
Towns and villages near Thrupp
More services for Thrupp
Signs you need sand mastic in Thrupp
Age is the main cause. Even well-laid mastic needs renewing in time, depending on exposure and upkeep.
The most common problems we see are:
- Cracked mastic round a front door frame
- Failed mastic on an exposed elevation
- Old sand mastic that has cracked, crumbled or fallen out
- A silicone bead on a sash window that spoils the look
Managing a site like The Marlborough Church of England School? Then its window and door frames need their mastic kept sound, just like a home’s.
Before booking anyone
- Which colour the sealant will be
- What happens if the job turns out different
- Is the old sealant removed completely?
- When the joint can take water or movement
What happens on the day
Once we’re on site, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Thrupp, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic is not too thick.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- For business premises, tell us about site rules or sign-in
- Let us know if you’ve seen damp or leaks
Ask for a quote
Want a quote for sand mastic? Please phone 0345 464 0079 or drop us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Advice
Your questions about sand mastic in Thrupp
I let a flat near Oxford Parkway station. Can you help?
Yes, we work for letting agents and landlords. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear price.
Is Thrupp within the area you cover?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Where is Mr Mastic based?
We are a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Is it messy?
Very little: the area around the joints is protected first, and we tidy up before we go.
Is there any odour?
That depends on the sealant. Some smell for a while, some hardly at all.
Can you quote for more than one area?
Yes, we can. Several rooms, windows or areas can go on one quote.
Are you ARBOMaster approved?
Yes. We are approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
When will the new mastic be hard?
It takes a while. It skins first and hardens fully later and we will give you an idea for your job.
Landlord and commercial work in Thrupp
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can go on one quote.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.