
Mastic Sealing in Somerton
Mastic sealing for Somerton, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- Cracked, hardened mastic round windows on a block
- Occupiers reporting cold air round windows
- Failed external movement joints
Mastic sealing across Somerton
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
About our mastic sealing in Somerton
Most buildings come with mastic joints nobody has looked at since handover, and it ages quietly: window perimeters, door frames, external joints and communal junctions all rely on it. Once it cracks, hardens or comes away, draughts and water find a way in, and occupiers start reporting it. Site teams most often ask us about movement joints with sealant missing and complaints coming in block by block, across communal entrances and stairwells, window and door perimeters on blocks and external wall and movement joints. Whoever orders the work in Somerton, the brief is normally the same: a clear scope, tidy work and joints that don’t fail again.
For owners with a single building near Somerton, we plan to finish in one visit where possible. Send photographs of the frames and joints and we’ll give a fixed quote.
We stand by our work: 12 months, guaranteed. That covers our preparation and application, and if something we did falls short, we return to it.

- Place
- Somerton (OX25)
- Wider area
- Oxfordshire
- Guarantee
- 12 months on every job
- Price
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Owners, agents and contractors
Main contractors use us as their sealant subcontractor. Programme, specification and site rules come first, and our applicators hold CSCS cards.
As a CHAS accredited contractor and Constructionline member, we are straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.
From enquiry to sign-off
We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. Jobs in and around smaller places like Somerton are usually planned as a single visit, so we ask for photos and rough sizes first. That way the right products come on the day.
- We check the asbestos register for older buildings and look at the joints.
- The products and programme are set out in a fixed quote.
- We strip out the old sealant.
- The joints are prepared and resealed with the right product.
- We finish each building before moving to the next.
Preparing the site
- Send any specification or drawings in advance
- Move anything stored against the joints
- Tell staff and tenants when we’ll be in
Quotes
For a fixed quote, phone 01277 525 020 or email the details over, telling us the site location and the nature of the job. Our quote form is another easy route.
Advice
What sets the cost
Each job is priced on its own details. The main factors are:
- The total length or number of joints
- Whether the work must be split into stages
- Site requirements such as inductions and permits
- Distance, for remote addresses
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a quote and we will explain how it’s made up.
What we need to price the job
There’s no need for a formal survey. These details are enough to start:
- Specification clauses that apply
- Clear photographs of the problem areas
- Your programme or deadline
- The postcode of the building
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, ring 01277 525 020 or send photos by email.
Maintenance after handover
Keep the joints in good shape with a few simple steps:
- Protect low-level joints in entrances
- Include mastic in your cyclical inspections
- Group repairs into a planned programme
- Ask residents or tenants to report leaks and draughts early
If a joint we sealed fails within 12 months, tell us and we’ll look at it. After that, regular inspection keeps the programme on track.
Left open, joint edges in render, brick or frames can deteriorate. Then the edges may need repairing first.
When to bring in a specialist
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
Also near Somerton
Other services in Somerton
What we’re called out for in Somerton
Much failed sealant was laid on dirty, dusty or damp surfaces. Without clean, sound faces and a primer where the product needs one, the bead peels off one side.
Things that usually lead to an enquiry:
- The same joint failures repeated across a portfolio
- Open joints in brickwork or panels
- Old repairs sealed over failed mastic
- Damaged joints in communal entrances and corridors
For agents with blocks near Heyford station, 2.7 miles south of Somerton, a block-wide mastic programme deals with frames, balconies and entrances in one go.
Before you book anyone
- How the joint faces will be prepared and primed
- Whether their applicators hold CSCS cards
- The terms of the workmanship guarantee
- Their public liability cover
FAQs: Somerton
Will you take on a block within reach of Heyford station?
Yes. Blocks of any size are within what we do. Give us the building’s details and say how residents are notified, and we’ll quote and plan to suit.
Do you cover business parks and estates near Somerton, such as Hatch End Old Industrial Estate?
Yes. We cover Somerton and the area around it, including industrial estates, business parks and retail parks such as Hatch End Old Industrial Estate. Photos and a short description are enough for a first look.
Can you work to our specification?
Yes. Send it with your enquiry, and the quote will be based on it.
How do you reach windows on upper floors?
It depends on the building. How upper joints are reached is agreed before work is booked so the fixed quote reflects it.
Does the weather affect the work?
Outside, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.
When is resealing likely to be due?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.
Will residents or tenants be disturbed?
The work is planned around occupiers. Dates and areas are agreed with you so residents or tenants can be told, and entrances stay in use.
For owners and agents in Somerton
Rainfall across the South East, Somerton included, is lower than in many parts of the UK. Outside work still depends on dry joints, and elevations facing the sun and the prevailing weather are usually where frame mastic ages first. Somerton lies roughly 60 miles out from central London. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres.
Landlords with units on estates such as Hatch End Old Industrial Estate, 2 miles south-west of Somerton, can bring frame, door and external mastic across several units into one programme. Churches, halls and community buildings such as Church of St James are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time.
Somerton is about 6 miles north-west of Bicester, in Oxfordshire. Any commercial site in Somerton is covered, whether it’s a single job or part of a planned programme. Across Oxfordshire, 423 places are covered, including Somerton. We also cover Oxford, around 14 miles from Somerton.
Work on mastic joints is covered throughout OX25, for business premises of every kind. Streets here include Water Street, Wharf Lane and Ardley Road. Sites close to Somerton are covered too, including Fritwell (2 miles east), Clifton (2 miles north), Upper Heyford (2 miles south), Souldern (2 miles north-east) and Lower Heyford (3 miles south). A short drive away, we cover Oxford (14 miles south), Banbury (8 miles north), Bicester (6 miles south-east), Witney (15 miles south-west), Kidlington (9 miles south) and Headington Quarry (14 miles south).
Landmarks near Somerton
For rail, the closest station is Heyford station, roughly 2.7 miles south. Nearby you’ll also find Deddington Castle (2.4 miles north-west).