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

Commercial Sealant Contractors in Eynsham

Work needed on a sealant joint in Eynsham? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Leaks that seem to come through a sealant line
  • Frame sealant that has cracked, shrunk or pulled away
  • Smeared sealant across finishes from a rushed job
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS & Constructionline
£5m public liability

Commercial sealant contractors across Eynsham

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

Aftercare for building managers

Your facilities or cleaning team can help the joints last. Pass these on to them:

  • Keep washroom and kitchen extraction working
  • Look at the sealant around anything that has been moved or replaced
  • Report cracked or peeling sealant early
  • Put external and wet-area joints on a regular inspection round

We stand behind the workmanship with a 12-month guarantee. File the handover note with the building records so it’s easy to find if a joint we sealed gives trouble inside the 12 months.

Sealant installed at the same time typically fails in sequence. The first failures are often a warning about the rest so the whole run is worth inspecting. We will tell you which sealant joints need doing first and which can wait.

Commercial mastic work in Eynsham

We’ve applied sealant on commercial sites for over 20 years, and the paperwork side is in order: we’re CHAS accredited and a Constructionline member, our applicators hold CSCS cards, and we carry five million pounds of public liability insurance. If your site needs RAMS, an insurance certificate or CSCS details, say so and we’ll confirm with the quote. We work on movement joints in walls and floors, window and door perimeters and external facade joints, and what we are called in for most is damp patches where an external joint has failed and shrunken sealant along kitchen worktops and splashbacks. A single leaking joint is often how a building in Eynsham first comes to us: we look at the rest while we’re there and tell you what we find.

In an occupied building in Eynsham, the job is planned so areas stay in use: washrooms in turn, floors in sections and entrances kept open.

Places like Eynsham tend to have a handful of commercial buildings: a local shop, a pub or restaurant, a surgery, a school and the odd office or workshop. Each job is modest, yet a joint in a small café needs the same cutting out, cleaning and sealing as one in a city office.

Our workmanship is guaranteed for 12 months, wherever the site is. If our installation lets you down in that time, we return and fix it.

Where
Eynsham (OX29)
Wider area
Oxfordshire
Cover
12 months on every job
Quotes
A fixed quote before we start
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Common problems we fix in Eynsham

If sealant tears through its centre, it has failed cohesively. Usually the movement was too much for the sealant chosen because the bead was too thin, the joint over-stretched or the movement class wrong. Replacing it like for like rarely holds.

These are often picked up first by site or facilities staff:

  • Frame mastic that has hardened and come away from the wall
  • Earlier reseals applied straight onto the failed bead
  • Greasy, split joints in a kitchen or tea point
  • Untidy joints in a reception, shop floor or lobby

If you run an office at a site such as Oasis Business Park, 0.5 miles to the south of Eynsham, the sealant at reception desks, tea points and frames ages with each fit-out.

What to look for in a quote

  • How long is the guarantee, and what does it include?
  • Health and safety accreditation such as CHAS
  • Their approach to joint depth and backing
  • How the joint faces will be prepared and primed

Our contractor checklist

Site staff or a sealant specialist?

Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we will confirm the paperwork you need with the quote.

Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

Your questions answered

Can you supply sealant in our brand colour for a site in Eynsham?

Yes, sealants come in a wide range of standard colours, and matching to RAL references, cladding, stone or frames is a common request. Send colour references or photos and we’ll confirm what’s available for the product.

Is a smaller place like Eynsham outside your area?

No. Small places get the same service as large ones. London and every South East county are within our area. Good photographs up front let us bring everything on the first visit.

Does commercial sealant work come with a guarantee?

A 12-month guarantee covers the workmanship. Keeping joints clean and inspected helps them last well beyond that.

How do we get a quote?

Photos, drawings or a schedule of the joints are usually enough to start. If a visit is needed we will book one, and a fixed quote follows.

How do you choose the sealant?

Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.

How many days will you need on site?

It depends on the scope, but the work typically takes part of a day on a small job and longer where several buildings or phases are involved. Larger or phased jobs take longer, and we will give you a timescale with the quote.

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.

What affects the price in Eynsham

A fixed quote reflects the actual work. It takes account of:

  • How much there is to seal
  • Working within restricted access windows
  • Travel to remote or island sites
  • The size and state of each joint

The product called for affects the cost, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site rules also count.

Before you send an enquiry

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

  • Approximate linear metres or a joint schedule
  • Your programme or deadline
  • Asbestos survey details if the building is older
  • The site address and postcode

A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we’ll fill any gaps with a visit.

What sealant work can’t fix

Some faults sit outside our scope, and we say so rather than covering them up:

  • Faulty windows rather than failed perimeter sealant
  • Removing asbestos-containing materials (a licensed or specialist contractor’s job)
  • Water from a services leak rather than a joint

If in doubt, call the office on 01277 525 020 or email us and we’ll say what we think.

Surfaces we seal

  • Washrooms and tea points
  • External facade joints
  • Kitchen worktops and splashbacks
  • Movement joints in walls and floors
  • Floor and threshold joints
  • Window and door perimeters

From enquiry to sign-off

We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. If neighbouring businesses or buildings around Eynsham need work too, visits can be combined. Mention the building’s opening times and we will work within them.

  1. First, details reach us through the quote form or a site visit.
  2. We diagnose the cause of failure and price a fixed scope.
  3. Work is phased around your occupiers where areas need to stay in use.
  4. Every failed bead is removed rather than covered.
  5. A suitable product for each joint goes in at the right depth and is tooled.
  6. We check the work with you, and the 12-month guarantee starts.

What we need from you

  • Tell us your opening times and when work is allowed
  • Tell staff and tenants when we’ll be in
  • Arrange parking or a loading space

Quotes

To get a fixed quote, give us a call on 01277 525 020 or send photos by email. Our quote form is another easy route.

Get a quick quote

Related advice

Commercial sealant contractors in Eynsham: the local picture

Eynsham lies roughly 58 miles out from central London. Business parks and retail centres are common around the capital’s motorway corridors. Occupiers with several premises in the region tend to prefer one contractor and one point of contact. The South East is one of the drier parts of the UK. Drier doesn’t mean dry every day, so frontage work still has some give in the dates.

Occupiers with premises at both Oasis Business Park and Horizon Technology Park could have the sealant at each handled under one quote. For premises near Hanborough station, which lies north of Eynsham, footfall is part of the plan: work is phased so shops and offices keep trading.

Eynsham is about 5 miles east of Witney, in Oxfordshire. Businesses, contractors and managing agents in Eynsham can call on us for sealant joints, as part of our coverage of Oxfordshire. We work across 423 places in Oxfordshire. We also cover Oxford, some 7 miles away.

Business premises anywhere in OX29 are within our area. If your site is on High Street, Station Road and Back Lane or close by, we can quote for sealant joints. We also cover Swinford (1 mile south-east), Cassington (2 miles north-east), Farmoor (2 miles south-east), Sutton (2 miles south-west) and Filchampstead (3 miles south-east). A short drive away, we cover Oxford (7 miles east), Didcot (13 miles south-east), Bicester (13 miles north-east), Abingdon-on-Thames (8 miles south-east), Witney (5 miles west) and Carterton (9 miles west).

Around Eynsham

Around Eynsham, our work takes us to commercial buildings near The Jolly Sportsman Public House And Attached Outbuildings and Eynsham Community Primary School and the streets around them. Eynsham’s nearest station is Hanborough station, about 2.9 miles north. Other landmarks nearby include Radcliffe Infirmary (5.1 miles east) and Oxford Bus Museum (3 miles north). Not far away are Cumnor Hill and Hook Meadow and The Trap Grounds.

Map of Eynsham © OpenStreetMap contributors
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