Mastic sealing for building owners and managing agents in Wantage, Oxfordshire
Mastic sealing for Wantage, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- Draughts at frames across a block
- Damp patches beside frames
- Movement joints with sealant missing
Mastic sealing near Wantage
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
When to call us in Wantage
Much failed sealant was laid on dirty, dusty or damp surfaces. Where the faces weren’t cleaned or primed as specified, the bead peels off one side.
It’s worth sending us details if you spot any of the following:
- Old repairs sealed over failed mastic
- Water getting in round frames after rain
- Repeated reactive repairs to the same buildings
- Estate-wide sealant that is simply worn out
If you are responsible for a building such as Church of St Peter and St Paul, frame and door mastic needs the same attention as any other property.
Questions to ask before you book
- Their pre-qualification and accreditations
- How joint depth will be controlled
- What the guarantee covers, and for how long
- Do they follow the manufacturer’s priming guidance?
Mastic sealing in Wantage, done properly
Different joints need different sealants. Low-modulus neutral-cure silicone suits many window perimeters and external movement joints, while hybrid polymer sealants grip many materials and are often paintable, and colours are confirmed for whichever product is used. We work on window and door perimeters on blocks, communal kitchens and washrooms and external wall and movement joints, and the usual reasons a site gets in touch are old repairs sealed over failed mastic and complaints coming in block by block. Looking for mastic applicators who cover Wantage? We’ve been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.
In a town such as Wantage, buildings managed by agents and landlords range from flats over shops to small blocks and offices. Mastic around frames, external joints and communal doors ages and needs renewing.
What our 12-month guarantee covers is the way we did the job: preparation, application and finish. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.
- Place
- Wantage (OX12)
- Wider area
- Oxfordshire
- Guarantee
- 12 months on every job
- Quotes
- A fixed quote before we start
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
When something else is needed
Some faults sit outside our scope, and we point that out rather than sealing over them:
- Materials that need asbestos testing before work
- Roof leaks, gutters or failed flashings that aren’t sealant joints
- Cracked or crumbling render, brick or stone at the joint edges (we’ll tell you if so)
Not sure which it is? You can call 01277 525 020 or email a schedule or drawings and we will tell you honestly.
Surfaces we seal
- Communal kitchens and washrooms
- Balcony and threshold joints
- External wall and movement joints
- Shopfronts below residential blocks
- Window and door perimeters on blocks
- Communal entrances and stairwells
For owners and agents in Wantage
The 2 miles around Wantage include five care or nursing homes. For owners and operators of care buildings, window perimeters and external joints are best renewed in planned phases around residents. The South East is one of the drier parts of the UK. External mastic still waits for dry faces and the right temperature, and the sunniest, most exposed sides of a building usually need attention first.
Schools and community buildings such as St Mary's School need frame and external mastic kept sound like any building. Landlords with units on estates such as Elms Farm Business Park (0.6 miles north of Wantage) can bring frame, door and external mastic across several units into one programme.
Wantage is about 8 miles west of Didcot, in Oxfordshire. Commercial clients in Wantage use us for work on mastic joints, as part of our coverage of Oxfordshire. Wantage is one of 423 places in Oxfordshire on our list for mastic joints. We also cover Oxford, some 14 miles away.
We take on mastic joints across the OX12 postcode area, whatever the building. For a building on Market Place, Limborough Road and Humber Close or nearby, send details and we’ll quote for mastic joints. Main routes into Wantage include the A338 and A417, which helps when planning parking and deliveries for the job. Sites close to Wantage are covered too, including Charlton (1 mile east), East Challow (1 mile west), Letcombe Regis (2 miles south-west), West Challow (2 miles west) and Childrey (2 miles west). Bigger towns within reach include Oxford (14 miles north-east), Didcot (8 miles east), Abingdon-on-Thames (8 miles north-east), Witney (14 miles north), Carterton (14 miles north-west) and Faringdon (8 miles north-west). As one of the bigger centres in Oxfordshire, Wantage has a broad mix of commercial, public and industrial buildings, and we cover them all.
Near you in Wantage
We work on buildings around King Alfred's, Betjeman Millennium Park and The Abingdon Arms, among other places. A little further out are Williams F1 Grand Prix Collection (1.9 miles north). Not far away are Letcombe Valley and Chain Hill.
Diagnose, treat, sign off
We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. Once we’re cleared to begin, we take the joints in the sequence agreed with you, and each area is checked before we leave it. Most work in Wantage is one building at a time: a school, a unit, an office or a block. We start with your photographs, drawings or a site visit, then send a fixed quote.
- Each block or building is walked and the failed joints recorded with the likely cause.
- You get a fixed quote, priced per building where that helps your budgeting.
- Dates, areas and access are agreed so residents or tenants can be told in advance.
- Old sealant is stripped and each face prepared back to firm material.
- Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
- Finished joints are looked over and the 12-month guarantee confirmed.
What we need from you
- Make sure the joints can be reached
- Arrange parking or a loading space
- Tell us what induction or permit system the site runs
Getting a fixed quote
To get a fixed quote, call 01277 525 020 or use the quote form with the site address and an outline of the work. You can also send details through our quote form.
Read more
What else we do in Wantage
Common questions from Wantage clients
Do you take on block-wide or estate-wide mastic work in Wantage?
Yes. Portfolio-wide programmes are a regular request. Residents are given notice through you, and the work moves building by building.
Will you work in a care home in Wantage without moving residents out?
Yes, with the manager deciding the order and timing of rooms. We follow the home’s own procedures throughout.
Can you work to our specification?
Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it, flagging anything that needs clarifying.
Is it fine to apply new sealant on top of old?
No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
Can you send RAMS and CSCS details before starting?
Let us know your requirements: tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote. We hold CHAS accreditation and Constructionline membership.
Is asbestos a concern with old mastic?
In older buildings, old mastic can contain asbestos. We check the asbestos register or survey before disturbing it, and if it’s suspected, work stops until it’s tested.
How long does a typical visit take?
It depends on the scope, though a typical visit typically takes anything from a day to a few weeks, depending on the number of buildings and joints. For bigger or phased jobs, we’ll set out a timescale with the quote.
Maintenance after handover
Keep the joints in good shape with a few simple steps:
- List the paperwork your organisation requires when you send details
- Reduce knocks to communal area joints
- Check sealant joints during planned building inspections
- Check the asbestos register before any old mastic is disturbed
Keep bins, bikes and deliveries away from low-level joints where you can. Knocks cause many early failures in communal areas.
Failed mastic often goes unnoticed until heavy rain finds it. Resealing when cracking first shows avoids water damage and saves internal repairs.
General trades versus a specialist
Some joints are best left to specialists: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong typically costs more in the end than doing them right.
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Cost factors for mastic joints
The price varies from site to site. Expect it to depend on:
- Any access equipment needed
- Location, for remote and island sites
- Whether old sealant has to be cut out first
- Joint width, depth and condition
No two sites price the same: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.
Details that help us quote
For an accurate fixed quote, we need to understand the site. Useful things to include:
- Any dates the work must fit around
- The postcode of the building
- Approximate linear metres or a joint schedule
- Asbestos survey details if the building is older
Pricing a project or setting a maintenance budget? We will quote against your scope and drawings you can plan around. If you have questions first, phone 01277 525 020 or email the details over.