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

Construction Mastic in Sunnymead

Work needed on a mastic package in Sunnymead? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Existing joints on a refurb that need cutting out and resealing
  • Different trades sealing to different standards
  • Sealant knocked or painted over by other trades
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS accredited
£5m PL insurance

Construction mastic for businesses in Sunnymead

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Construction mastic in Sunnymead, done properly

On refurbishments, the mastic package usually includes cutting out old sealant as well as sealing new work. Existing joints have to be stripped back to sound faces, because fresh sealant can’t key into cured silicone and the asbestos survey is checked first on older stock. After that, the joints are prepared and sealed to the specification. Most enquiries involve inconsistent sealant finishes from plot to plot and missed perimeter joints on a new elevation, on sanitary and kitchen joints, brick and block movement joints and internal decorators’ caulk. Whoever orders the work in Sunnymead, the brief is typically the same: a clear scope, tidy work and joints that don’t fail again.

For a contractor on a smaller site near Sunnymead, one mastic visit at the right stage saves return trips. Let us know the key stages and we’ll time the work so nothing waits on us.

Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and we explain exactly what that covers when we quote.

The Mastic Doctor team beside their liveried vans in front of an office building
Location
Sunnymead (OX2)
Wider area
Oxfordshire
Cover
12 months on every job
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026

From enquiry to sign-off

We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. For a job in Sunnymead, the main thing is a clear picture of the work, so send photographs of each area. A fixed quote follows.

  1. We walk the site or review drawings to understand the package.
  2. A fixed quote sets out scope, products and phasing.
  3. Site paperwork is confirmed and our CSCS-carded applicators are inducted.
  4. Sealing follows the programme as areas are released.
  5. Any frame gaps or issues outside our scope are flagged to the site team.
  6. Final snagging is completed and the 12-month guarantee applies.

Preparing the site

  • Tell us which areas need to stay in use
  • Send any specification or drawings in advance
  • For older buildings, check the asbestos register before work

Getting a fixed quote

A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or give us a call on 01277 525 020 or send photos by email if you’d rather talk the job through.

Ask for a quote

Related advice

Commercial clients in Sunnymead

Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.

Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.

Doing it in-house

Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class.

Signs you need construction mastic in Sunnymead

Frames installed with uneven gaps make perimeter sealing harder. Sealant has a range of joint widths it can cope with. We flag them early rather than filling them with sealant that won’t last.

Things that typically lead to an enquiry:

  • Early adhesion failures on new external joints
  • Window and door perimeters that won’t pass inspection
  • Old sealant on a refurbishment that needs stripping before new work
  • Different trades sealing to different standards

For contractors on a campus like Oxford Brookes University Marston Road Site, 2.1 miles to the south-east of Sunnymead, facade and perimeter sealing has to fit around students and term dates.

What to look for in a quote

  • Is the sealant right for the movement and the substrate?
  • How long is the guarantee, and what does it include?
  • How they handle RAMS and site documents
  • Their public liability cover

Our contractor checklist

Common questions from Sunnymead clients

Does your area include sites such as Jordan Hill Business Park, near Sunnymead?

Yes. Estates, retail parks and business parks around Sunnymead, Jordan Hill Business Park among them, are all within reach. To start, just speak to us on 01277 525 020 or email the details over with the unit, the joints involved and your access times.

Can you take on a job at a hospital such as John Radcliffe Hospital?

Yes, hospitals are one of the sectors we cover. We follow the site’s permits, sign-in and infection-control procedures in every area.

What joints do you seal on a new build?

External and internal frame perimeters, caulking where it’s specified, sanitary silicone, kitchen joints and snagging before handover. The scope follows your specification.

Can you fit around our programme?

Working to your programme, we seal each area as it’s handed over. The sequence is settled with your site team.

Will you just go over the old sealant?

No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.

What guarantee comes with a mastic package?

Each package is backed by a 12-month guarantee. We carry five million pounds of public liability insurance.

Can you handle several sites?

Yes. Several buildings can share a single quote, with one point of contact across South East England, Greater London and Scotland.

Quoting for work in Sunnymead

To price the job, we consider:

  • Location, for remote and island sites
  • Whether old sealant has to be cut out first
  • How much there is to seal
  • Which sealant the job calls for

There’s no price list, because the scope varies so much from one building to the next. For a fixed figure, call for a quote.

Sending details for a quote

Whether it’s one area or a whole building, the same details help:

  • The product your specification calls for
  • The asbestos register, for older buildings
  • Whether the building will be occupied during the work
  • Where the site is, with the postcode

Let us know the site, the scope and your timescale, and we’ll put a fixed quote together. The easiest way is to call the office on 01277 525 020 or send photos by email.

Different surfaces, different methods

External facade and movement joints

Brickwork, blockwork and panel movement joints need a sealant with the right movement capability. We set the depth with backing rod to avoid three-sided adhesion.

Window and door perimeters

A frame gap that’s too wide can’t just be filled with sealant. Gaps outside the product’s range are raised with the site team before sealing starts.

New build and refits around Sunnymead

Sunnymead has a good number of hotels close by, all within 2 miles. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up. The South East is one of the drier parts of the UK. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, so we time external mastic for dry faces and agree it with the site team.

When a college such as Oxford Sixth Form College (to the south of Sunnymead) builds or refurbishes, the mastic package normally has to fit around students and staff. For a contractor at a hotel such as Remont Oxford Hotel, which lies west of Sunnymead, the mastic often has to be finished before a reopening date.

Sunnymead is about 3 miles north-west of Oxford, in Oxfordshire. We cover commercial sites throughout Sunnymead, whether it’s a single job or part of a planned programme. Sunnymead is one of 423 places in Oxfordshire on our list for mastic packages.

Postcode districts covered here: OX2. Streets here include Wren Road, Scott Road and Wyatt Road, and sites on any of them can send details for a fixed quote. Access to Sunnymead is via the A4165, so getting applicators and materials to site is simple. Just outside Sunnymead, we also work in Cutteslowe (1 mile north), Summertown (1 mile south), North Oxford (1 mile south), Wolvercote (1 mile west) and Park Town (1 mile south). Further afield, our area takes in 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).

Near you in Sunnymead

Locally, jobs take us to sites close to St Hugh's College Main Building Including Library, Oxford University Parks and Dew Drop Inn and the streets around them. Also close by are Summer Fields School (0.5 miles south) and Oxford Academy (0.7 miles south). Sunnymead’s nearest station is Oxford Parkway station, about 1.4 miles north. A little further out are 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
Accreditations

Trusted. Accredited. Insured.