The Mastic Doctor team standing beside their branded vans outside an office building
Oxfordshire · England

Fritwell mastic sealing

Our CSCS-carded applicators take on mastic sealing for building owners, managing agents and housing associations in Fritwell and the surrounding area. Send photographs or drawings for a fixed quote.

  • Repeated reactive repairs to the same buildings
  • Open joints in brickwork or panels
  • Leaks at window and door perimeters
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
Constructionline member
£5m PL insurance

Mastic sealing across Fritwell

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Mastic sealing in Fritwell

There isn’t one mastic for every joint on a building. Low-modulus neutral-cure silicone suits many window perimeters and external movement joints, and MS polymer sealants stick well to many substrates and often take paint, and colours are confirmed for whichever product is used. The enquiries we see most involve mastic failing across several blocks on an estate and movement joints with sealant missing, across communal kitchens and washrooms, communal entrances and stairwells and external wall and movement joints. Whether you call it commercial sealant work, mastic application or joint sealing, in Fritwell it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Rural conversions near places like Fritwell often set modern frames into older stone, flint or brick. The mastic needs to suit an irregular masonry face and the look of the building.

Our 12-month guarantee is about workmanship, not wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we are clear about what is covered before work starts.

Where
Fritwell (OX27)
Region
Oxfordshire
Cover
12 months on every job
Quote
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Why deal with it now?

Replacing mastic before water gets in is a planned job. Once water has tracked in, the repair list grows and occupiers notice. Halls, stores and units around places like Fritwell may not be checked every day, which gives a failed joint time to do damage. Resealing early avoids that.

Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.

Why appoint us

  • Colours confirmed for the specified product
  • Over 20 years of commercial sealing
  • Constructionline member
  • CHAS accredited

Take a look at what affects the cost and our accreditations.

How a job runs

In a busy building, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed before we move to the next. If others near Fritwell need work, visits can be combined. You will have a fixed quote before work starts.

  1. First we look at the mastic on each building and note what needs replacing.
  2. We send a fixed quote that sets out the joints, the products and the programme.
  3. The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
  4. Old sealant is stripped and each face prepared back to firm material.
  5. Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
  6. Completed joints are inspected and carry a 12-month workmanship guarantee.

Getting the site ready

  • Warn occupants and staff about the work
  • Explain the parking and delivery arrangements
  • Move anything stored against the joints

Getting a fixed quote

Send us photos, drawings or a joint schedule and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.

Ask for a quote

Read more

Different surfaces, different methods

Tenement and older buildings

Traditional buildings have joints that need a careful approach. The material either side of the joint shapes the product choice.

External movement joints

Movement joints are cleaned out, backed with rod and resealed with a sealant of the right movement class.

Blocks and managed buildings in Fritwell

The South East is one of the drier parts of the UK. Outside work still depends on dry joints, and south- and west-facing elevations, which take the most sun and rain, often age first. At about 58 miles from central London, Fritwell is within reach of the capital. Managed blocks of flats are a big part of commuter-belt property.

Buildings close to stations like Heyford station (4 miles south-west of Fritwell) are often flats over shops, with frame mastic to keep sound. Site managers at schools like Fritwell Church of England Primary School can fit frame mastic into the summer works.

Fritwell is about 5 miles north-west of Bicester, in Oxfordshire. Across the OX27 postcode area, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Across Oxfordshire, 423 places are covered, including Fritwell. Our Oxford page has more on work in that area (14 miles or so).

We take on mastic joints across the OX27 postcode area, for business premises of every kind. If your site is on East Street, Fewcott Road and Hodgson Close or close by, we can quote for mastic joints. Just outside Fritwell, we also work in Fewcott (1 mile south-east), Souldern (1 mile north), Ardley (1 mile south-east), Somerton (2 miles west) and Upper Heyford (2 miles south-west). Bigger towns within reach include Oxford (14 miles south), Banbury (9 miles north-west), Bicester (5 miles south-east), Kidlington (10 miles south), Headington Quarry (14 miles south) and Bure Park (5 miles south-east).

Landmarks near Fritwell

Locally, jobs take us to sites close to George and Dragon pub, among other places. The nearest railway station is Heyford station, about 4 miles south-west of the centre. Other landmarks nearby include Ardley Castle (1.4 miles south-east) and Bicester Community Hospital (5.4 miles south-east).

Map of Fritwell © OpenStreetMap contributors

Should maintenance staff do it?

What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.

Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.

Do you need mastic sealing in Fritwell?

Buildings move with temperature and moisture, and the sealant takes up that movement. A joint that was too narrow, too thin or the wrong product can’t cope and fails early.

Any of the following is a good reason to get the joints checked over:

  • Estate-wide sealant that is simply worn out
  • Open joints in brickwork or panels
  • Leaks at window and door perimeters
  • Old repairs sealed over failed mastic

For owners of several units at places like Baynards Green Trading Estate, which lies east of Fritwell, one programme can deal with frame and external mastic across the lot.

Comparing quotes

  • What site paperwork they can supply
  • How joint depth will be controlled
  • Do they follow the manufacturer’s priming guidance?
  • Health and safety accreditation such as CHAS

Our contractor checklist

Honest limits

We check first that sealant really is the fix. It isn’t the answer for:

  • Leaks from above rather than through a joint
  • Materials that need asbestos testing before work
  • Broken glass or failed sealed units

If in doubt, speak to us on 01277 525 020 or email the details over and we’ll say what we think.

What we seal

  • Balcony and threshold joints
  • Communal entrances and stairwells
  • Shopfronts below residential blocks
  • Window and door perimeters on blocks
  • External wall and movement joints
  • Communal kitchens and washrooms

Questions we are asked in Fritwell

Will you take on a block within reach of Heyford station?

Yes. Blocks of any size are within what we do. Photos of each elevation help us quote accurately.

Is a smaller place like Fritwell outside your area?

No. Small places get the same service as large ones. London and every South East county are within our area. We plan jobs in smaller places so return trips are kept to a minimum.

Is asbestos a concern with old mastic?

Asbestos removal isn’t part of our work. If old sealant is suspected, work stops until it’s tested in line with the dutyholder’s asbestos management.

Is mastic sealing guaranteed?

A 12-month guarantee covers our work. It covers our workmanship, not later building movement, damage or frame failures.

How long before the joints can be used?

We will confirm how long the chosen product needs to cure, and flag anything to keep off until it has cured.

How do you handle work on occupied blocks?

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.

Do you supply RAMS and insurance details?

We’re CHAS accredited, a Constructionline member and carry public liability insurance. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.

Accreditations

Trusted. Accredited. Insured.