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

Commercial Sealant Contractors in Mortimer

We carry out sealant work for offices, shops, hotels and other commercial buildings in Mortimer. Send details for a fixed quote.

  • Messy, uneven beads from earlier work that let the building down
  • Earlier reseals applied straight onto the failed bead
  • Shrunken sealant along kitchen worktops and splashbacks
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
Constructionline member
£5m public liability

Need commercial sealant contractors in Mortimer?

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Commercial mastic work in Mortimer

On older buildings, particularly those put up before 2000, some old mastics and sealants may contain asbestos. Before anything is cut out, we ask for the asbestos register or survey, since managing asbestos is the dutyholder’s responsibility. If a material is suspected, work stops until it’s tested. If you are dealing with movement joints packed with grit and debris and weathered facade sealant that no longer flexes, we can help. One point of contact handles commercial sealant work in Mortimer from the first photos to the final walk-round, whether it’s one building or several.

A lot of what we do in Mortimer is replacing sealant that has done its years: hardened, cracked or shrunk away from the faces, and letting water or dirt in.

Sealant jobs for businesses in a place the size of Mortimer are often best grouped: frontage, staff facilities and window perimeters on one booking. That keeps travel and disruption down, and where colour matters on the frontage, we’ll confirm what’s available for the product.

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.

Where
Mortimer (RG7)
Wider area
West Berkshire
Cover
12 months on every job
Quotes
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

What sealant work can’t fix

A few problems need another trade or a different fix, and we point that out rather than sealing over them:

  • Cracking that needs a structural engineer to look at it
  • Leaking roofs, gutters or flat-roof membranes (those need a roofer)
  • Water from a services leak rather than a joint

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

Surfaces we seal

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

Why it’s worth doing now in Mortimer

Some low prices are low because nothing gets cut out. Sealing over looks tidy at handover, then lifts once the joint starts moving. Our prices always include removal of the failed bead and full joint preparation, because that’s what makes the new bead last. For buildings in places like Mortimer, one well-planned visit beats several small ones, so we’d suggest renewing all the joints that are going, not just the worst.

Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.

Why appoint us

  • Clear, fixed quotes
  • Standard and matched colours in many product ranges
  • One contact handling all your sites
  • 12-month guarantee on workmanship

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

For managing agents and facilities managers

Whether you’re a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.

CHAS accredited and a Constructionline member, we’re straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.

Questions about Mortimer

Can you work at a site such as Stacey Industrial Park, by Mortimer?

Yes, sites like Stacey Industrial Park are within our area, along with the rest of Mortimer. A few photos and the unit address let us price the work.

Is Mortimer too far out for you?

No. Places such as Mortimer are covered as much as the big towns. London and every South East county are within our area. Good photos up front let us bring everything on the first visit.

Will your applicators have CSCS cards?

Yes. If you need card details for site access, let us know and we’ll send them with the quote.

Is your work guaranteed?

Each job sits under our 12-month guarantee from handover. Looking after the joints as we advise helps them last.

Which site documents can you send us?

Send your site requirements with the enquiry, and the paperwork is confirmed with the quote. For older buildings we’ll ask for the asbestos register, plus your site induction rules.

Are you CHAS accredited and on Constructionline?

Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.

Will the building have to shut during the work?

It’s mostly about sequence: we agree access windows, phase the work and keep enough facilities open. Let us know what can’t close and we’ll work around it.

Commercial sealant contractors in Mortimer: the local picture

At about 43 miles from central London, Mortimer is within reach of the capital. The commuter belt holds a great many offices, retail parks and business parks. Firms with branches across the South East can use one contractor for every site. The South East is one of the drier parts of the UK. That helps, but frost and condensation on glass and coated frames still stop outside sealing on some winter mornings.

Premises within reach of Mortimer station, 1.4 miles east of Mortimer, often have busy frontages where joints are seen by everyone passing.

Mortimer is about 4 miles north-east of Tadley, in West Berkshire. Our applicators travel to Mortimer for work on sealant joints. We work across 140 places in West Berkshire, large and small. Sites around Reading have their own page, roughly 6 miles from Mortimer.

Postcode districts covered here: RG7 for sealant joints. We cover commercial and managed buildings on The Street, Croft Road and Leigh Field. If your building is just outside Mortimer, we cover Stratfield Mortimer (1 mile east), Mortimer West End (1 mile south-west), Goddard's Green (2 miles north-east), Burghfield Common (2 miles north) and Wokefield (2 miles north-east). Nearby towns on our patch include Newbury (11 miles west), Thatcham (8 miles west), Speenhamland (11 miles west), Fords Farm (5 miles north), Little Heath (6 miles north) and Calcot (5 miles north).

Landmarks near Mortimer

Recent enquiries here include premises near The Willink School, The Willink School and Padworth Common Local Nature Reserve. The nearest railway station is Mortimer station, about 1.4 miles east. Other landmarks nearby include Calleva Museum (2 miles south-west) and Beaumys Castle (3.7 miles east). The countryside around Mortimer includes Hosehill Lake.

Map of Mortimer © OpenStreetMap contributors

What we are called out for in Mortimer

No sealant joint is permanent. How long one lasts depends on the movement it takes, its exposure to sun and weather, the cleaning regime, the traffic and the product itself. In commercial buildings those factors tend to act together, so periodic inspection matters more than any date on a schedule.

Most enquiries start with one or more of the following:

  • Greasy, split joints in a kitchen or tea point
  • Sanitary sealant that has gone black and patchy
  • Hardened, chalky sealant on south-facing or exposed elevations
  • Movement joints packed with grit and debris

A unit on an estate like Stacey Industrial Park (to the south-west of Mortimer) normally has an office front, a trade counter and staff facilities with joints of their own.

What your quote should include

  • What the guarantee covers, and for how long
  • Whether old or failed sealant will be cut out, not overlaid
  • Their approach to joint depth and backing
  • How the joint faces will be prepared and primed

Questions to ask before you appoint anyone

Diagnose, treat, sign off

When we get to site, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before anything is cut or cleaned, with the work itself usually taking anything from part of a day on a short run of joints to several weeks on a large phased package. For a job in Mortimer, the main thing is a clear picture of the work. You will then get a fixed price for the work.

  1. We start with the evidence: photos, drawings or a look on site.
  2. A fixed quote follows, with removal and preparation included.
  3. Sequence, access and working times are settled before the first joint is touched.
  4. The failed sealant comes out and the faces are prepared, with primer where required.
  5. Depth is set with backing, then the sealant is applied, tooled and the area tidied.
  6. Completed areas are signed off with you under our 12-month guarantee.

Preparing the site

  • Arrange parking or a loading space
  • Share the asbestos register for older buildings
  • Tell us your opening times and when work is allowed

Getting a fixed quote

Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings that you can work with. If you have questions first, speak to us on 01277 525 020 or email us.

Get a quick quote

Related advice

Surface by surface

Window and door perimeters

Where frames meet the surrounding wall, sealant is the weather line. We remove the old seal, prepare the faces, fit backing where needed and seal again with a product chosen for both the frame and the wall.

Washrooms and toilets

Black sealant in a toilet block is normally beyond cleaning. The lasting answer is removal, preparation and a new sanitary bead, room by room if that suits the building.

Accreditations

Trusted. Accredited. Insured.