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

Mastic sealant contractors in Sunnymead

Planning work on a mastic joint in Sunnymead? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Old repairs sealed over failed mastic
  • Damaged joints in communal entrances and corridors
  • Draughts at frames across a block
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
Constructionline member
Fully insured: £5m PL

Mastic sealing for Sunnymead sites

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

Questions we are asked in Sunnymead

Is Jordan Hill Business Park, near Sunnymead, within your area?

Yes. Our area takes in Sunnymead and its surroundings, with estates and business parks such as Jordan Hill Business Park included. Photos and a short description are enough for a first look.

Is Sunnymead off your patch?

Not at all: smaller places are covered as well as towns. London and every South East county are within our area. We plan jobs in smaller places so return trips are kept to a minimum.

How do we ask for a quote?

It works in four steps: send details, get a quote, we seal, guaranteed. Step one needs little more than photos and a postcode.

Which sealant will you use?

A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

Do you take on small jobs?

Single areas, one-off repairs and whole buildings are all quoted the same way: send details, get a fixed quote, we seal, guaranteed.

Can you seal joints high up on a block?

Every block is different. How upper joints are reached is agreed before work is booked so the fixed quote reflects it.

Do you need to see the site first?

Many jobs can be quoted from photos, drawings or a joint schedule. If the job needs a look first, we’ll arrange a visit.

About our mastic sealing in Sunnymead

For over 20 years we have resealed joints for owners, agents and landlords. Our applicators are CSCS-carded and we hold public liability insurance. Each building we complete carries a 12-month guarantee on our workmanship. Site teams most often ask us about occupiers reporting cold air round windows and mastic failing across several blocks on an estate, on external wall and movement joints, balcony and threshold joints and communal entrances and stairwells. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Sunnymead is the same: the right product in a properly prepared joint.

In a smaller place such as Sunnymead, landlords and agents tend to look after small blocks, flats over shops, sheltered housing and commercial units. Their window perimeters and external joints need renewing as the mastic ages.

Our workmanship is guaranteed for 12 months, in Sunnymead as everywhere else we work. If a joint we sealed fails because of how it was installed, we come back and put it right.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
Sunnymead (OX2)
Region
Oxfordshire
Guarantee
12 months on our workmanship
Price
A fixed quote before we start
Call
01277 525 020
Last updated
3 November 2026

What the job involves on each surface

Commercial and mixed-use buildings

Where retail and residential share a building, so phasing has to suit both. Tell us your site hours and access windows and we’ll plan around them.

Planned maintenance

How long mastic lasts depends on exposure, movement and the product used. Regular inspection is the best way to plan resealing.

From enquiry to sign-off

Inspect, seal, sign off: every visit follows that pattern. First comes an inspection and agreement on scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. If neighbouring businesses or buildings around Sunnymead need work too, visits can be combined. Mention the building’s opening times and we’ll work within them.

  1. First we look at the mastic on each building and note what needs replacing.
  2. You get a fixed quote, priced per building where that helps your budgeting.
  3. Dates, areas and access are agreed so residents or tenants can be told in advance.
  4. We remove the old mastic completely and clean the joint faces back.
  5. Backing rod and primer go in where the joint and the product need them, then new sealant is applied and tooled.
  6. Finished joints are looked over and the 12-month guarantee confirmed.

What we need from you

  • Send asbestos survey details if the building is pre-2000
  • Point out any areas we must not close
  • Tell us your opening times and when work is allowed

Get a fixed quote

Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. To get it moving, ring 01277 525 020 or email the details over.

Ask for a quote

Read more

When to bring in a specialist

The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.

A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

Why it’s worth doing now in Sunnymead

Replacing mastic before water gets in is a planned job. Once water has tracked in, the repair list grows and occupiers notice. For buildings in places like Sunnymead, one well-planned visit beats several small ones, so we’d suggest renewing all the joints that are going, not just the worst.

The specified product makes a difference, as does the preparation each joint needs. Access, phasing and site requirements come into it too.

Why choose Mastic Doctor in Sunnymead

  • Commercial sealant work since 2005
  • Health and safety: CHAS accredited
  • Our applicators hold CSCS cards
  • Colour options checked against the specified product

See our cost guide or our accreditations.

How the quote is worked out

There’s no standard rate for sealant work, because every site is different. What we take into account:

  • Working within restricted access windows
  • Specialist products, such as fire-rated or hygienic sealants
  • The site’s rules and procedures
  • Location, for remote and island sites

We don’t publish prices, because the scope varies so much from one building to the next. Call for a quote.

What we need to price the job

We can often quote from photos and a few details. Please tell us:

  • The asbestos register, for older buildings
  • A wide shot and a close-up of the area
  • Your programme or deadline
  • Access details, including height

Photos, drawings or a schedule of the joints and a fixed quote comes back to you. If the job needs a look first, we will arrange a site visit.

Maintenance after handover

A few simple habits keep the new joints working:

  • Group repairs into a planned programme
  • List the paperwork your organisation requires when you send details
  • Share the asbestos register when you send details
  • Encourage occupiers to report problems at frames

If paintable sealant was used, decoration can follow once it has cured. Non-paintable silicone shouldn’t be painted over.

Failed mastic often goes unnoticed until heavy rain finds it. Resealing when cracking first shows avoids water damage and saves internal repairs.

Block-wide mastic in Sunnymead

Sunnymead lies roughly 54 miles out from central London. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres. Rainfall across the South East, Sunnymead included, is lower than in many parts of the UK. External mastic still waits for dry faces and the right temperature, while the elevations that take the most sun tend to show hardened mastic first.

Site managers at schools like Cutteslowe Primary School can fit frame mastic into the summer works. For owners of several units at places like Jordan Hill Business Park (0.7 miles north-west of Sunnymead), one programme can deal with frame and external mastic across the lot. Older community buildings, Roman Catholic Church of St Gregory and St Augustine among them, often have frames of mixed ages whose mastic varies.

Sunnymead is about 3 miles north-west of Oxford, in Oxfordshire. Any commercial site in Sunnymead is covered. We work across 423 places in Oxfordshire, large and small.

Anyone looking for mastic sealing in OX2 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on Wren Road, Scott Road and Wyatt Road. Being close to the A4165, Sunnymead is straightforward for us to reach. If your building is just outside Sunnymead, we cover Cutteslowe (1 mile north), Summertown (1 mile south), North Oxford (1 mile south), Wolvercote (1 mile west) and Park Town (1 mile south). Bigger towns within reach include Oxford (3 miles south-east), Didcot (12 miles south), Bicester (9 miles north-east), Abingdon-on-Thames (7 miles south), Witney (10 miles west) and Carterton (14 miles west).

Around Sunnymead

We work on buildings around St Hugh's College Main Building Including Library, Oxford University Parks and Dew Drop Inn, among other places. Nearby too are Summer Fields School (0.5 miles south) and Oxford Academy (0.7 miles south). The nearest railway station is Oxford Parkway station, roughly 1.4 miles north of the centre. Other landmarks nearby include Oxford Castle (2.3 miles south) and Oxford University Museum of Natural History (1.8 miles south). For a walk, there’s Hook Meadow and The Trap Grounds and Headington Hill.

Map of Sunnymead © OpenStreetMap contributors
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