Oxfordshire · England
Sand Mastic in Jericho
Sand mastic for Jericho and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Weathered mastic on the most exposed windows
- Gaps where the frame meets the masonry
- Old cement repairs round a window that have failed
Sand mastic in Jericho, done properly
On many period windows, sand mastic looks right and suits the building. On modern frames we’d normally use a flexible sealant and we will explain which is best for yours. We are often asked to deal with mastic round period door frames that has failed and draughts and rain around sash boxes, across tenement windows, brick reveals and sash and case windows.
Houses in smaller places like Jericho can stand more in the open than those in a built-up town, so exposed windows and doors face the weather head on. That’s hard on the mastic around frames and sills.
Big or small, it’s backed by our one-year guarantee in Jericho and across Oxfordshire.
- Location
- Jericho (OX1, OX2)
- Wider area
- Oxfordshire
- Guarantee
- A year, on every job
- Quote
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Sand mastic in Jericho: local notes
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Holywell Manor (about 0.9 miles east) are a reminder that the area around Jericho has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
For an older house near a landmark such as St Barnabas Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For landlords with property near Oxford station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Jericho is about 2 miles west of Oxford, in Oxfordshire. Every kind of property in Jericho is covered for sand mastic, old or new, large or small. The work is guaranteed for a year. We cover 443 towns and villages across Oxfordshire, from the larger towns to small villages.
Every address in OX1 and OX2 is within our area for sand mastic. You’ll find streets such as Abbey Road, Combe Road and Pusey Lane, and we cover them all. You will find Jericho on the A4144, which makes it straightforward to reach with everything needed for sand mastic. We also cover the places around Jericho: Walton Manor (1 mile north), St John Street area (1 mile south-east), Park Town (1 mile north-east), Norham Manor (1 mile north-east) and Osney (1 mile south-west). Further out, we also cover Didcot (10 miles south), Bicester (11 miles north-east), Abingdon-on-Thames (6 miles south), Witney (10 miles west), Carterton (14 miles west) and Thame (13 miles east).
Near you in Jericho
In Jericho, that means homes and buildings near Oxford University Parks, The Rickety Press pub and The Eckersley School of English and the streets around them. Other local landmarks include Oxford Academy (1.1 miles north) and Somerville College Library (less than half a mile east). The nearest railway station is Oxford station, roughly 0.5 miles south of the centre. Nearby you will also find Oxford University Press Museum (under half a mile south-east) and Clarendon Shopping Centre (0.7 miles south-east). For a walk, there’s Hook Meadow and The Trap Grounds and Harcourt Hill.
The process
Once we’re on site, we check the joints match what you told us. 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. A visit to Jericho is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
How to prepare
- Let us know about stairs, lifts or work at height
- Mention any sign-in or site rules at work premises
- Mention if the joints have been sealed before
How to get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work and send you a clear quote.
Related advice
Landlords, agents and businesses in Jericho
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Aftercare tips
A little care helps the new joints last. Our advice:
- Ask us before painting near the mastic
- Avoid heavy scraping on the mastic joint
- Look over the window mastic once a year
- Renew mastic before redecorating the windows
Avoid painting over the new mastic, which is the traditional advice. Ask us before any decorating around it.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
Nearby places to Jericho
Other services in Jericho
What sealant work can’t fix
A few problems are outside what sealant work can do:
- Decisions on consent for listed homes
- Damaged stone surrounds
- Cracked or broken glass
If you’re not sure, just ring 0345 464 0079 or email us and we will give you a straight answer.
What we seal
- Brick reveals
- Stone surrounds
- Period & listed homes
- Sash and case windows
- Timber door frames
- Tenement windows
Common questions in Jericho
Is Jericho in your area for sand mastic?
Yes. Our work covers London and the South East, and Jericho is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.
Can you help a landlord with a rental near Oxford station?
Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.
Should I try DIY first?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
Do you have insurance?
Yes. We are fully insured for every job we do.
Is it possible to take out silicone and use sand mastic instead?
Often, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.
Is the work guaranteed?
All our work has a one-year guarantee.
Which products do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Will the old sealant be removed?
Yes, always, and completely. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
Why act early in Jericho
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and blends with the stone or brick. In an older home around Jericho, damp from a failed joint can get into timber and plaster, and that’s a much bigger job than renewing the sealant.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we will explain what it covers.
What you get with us
- Arbo and Everbuild products
- Rated 4.9 stars on Google
- A 12-month guarantee on all work
- Domestic, commercial and hotel work
Read how sealant jobs are priced and customer reviews.
What we are called out for in Jericho
Age is the main cause. Sand mastic is a maintenance item like any pointing, depending on exposure and upkeep.
These are the problems we are asked about most:
- Gaps round a timber door in stone or brick
- Patchy fillers round a sash window
- Gaps between timber frames and stone or brick
- Silicone on a period window that looks wrong
Managing a site like St Barnabas' Church of England Aided Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
What to look for in a quote
- Who does the work, and how experienced they are
- How long to leave it before use
- Whether you can choose the colour
- What the quote includes, VAT included or not
Quotes for sand mastic in Jericho
The price is agreed before any work begins. It takes into account:
- Mould in or behind the old joints
- The number and length of the joints
- The number of rooms or windows
- The old material and how stubborn it is
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part.
Helping us quote
When you call or email, these details help:
- Whether it’s a home or a business
- What’s wrong with the joints now
- Whether it has been sealed before
- Pictures of the joints, sent by email
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.