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

Commercial sealant contractors in Ware, Hertfordshire

Sealant work for offices, shops, hotels and other commercial buildings throughout Ware and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.

  • A top-up bead over failed sealant, now lifting
  • Greasy, split joints in a kitchen or tea point
  • Sanitary sealant that has gone black and patchy
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
Constructionline member
£5m public liability

Need commercial sealant contractors in Ware?

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

When something else is needed

A few problems need another trade or a different fix, and we say so rather than covering them up:

  • Broken glass or blown double-glazed units
  • A dripping trap, valve or pipe behind a fitting
  • Suspect materials that need testing and specialist removal

If you are not sure, just phone 01277 525 020 or email a schedule or drawings and we will give you a straight answer.

Surfaces we seal

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

Sealant applicators in Ware

Commercial occupiers rarely want a floor out of action for sealant work. Work is scheduled around the site hours and access windows you give us. It’s the same approach in offices, retail units, hotels, schools and healthcare buildings. We work on movement joints in walls and floors, floor and threshold joints and washrooms and tea points, and what we’re called in for most is untidy joints in a reception, shop floor or lobby and frame sealant that has cracked, shrunk or pulled away. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Ware, preparation and product choice get the time they need.

On a typical commercial building in Ware, the joints that fail first are the hardest-worked ones: frame perimeters in the sun, floor joints at doorways and anything that gets wet every day.

Many businesses in towns like Ware work from older buildings that have been altered more than once. Joints where brick or render meets a newer frame or panel move differently, so the sealant has to suit both sides.

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 standing beside their branded vans outside an office building
Location
Ware (SG12, SG9)
Wider area
Hertfordshire
Guarantee
12 months on every job
Quotes
Fixed quote, scope in writing
Phone
01277 525 020
Last updated
3 November 2026

Commercial premises in Ware

Less than 3 miles from Ware there are at least three named estates and business parks. Sites like these see regular refits, with shopfronts, offices and staff areas to seal. The South East is one of the drier parts of the UK. External joints still need dry faces and the right temperature, and damp or frosty mornings can hold work up.

Occupiers with premises at both Crane Mead Business Park and Ermine Point Business Park could have the sealant at each handled under one quote. For a hotel such as The Station Hotel (less than half a mile south of Ware), the colour of a joint at the bar or the bath matters to the look of the room.

Ware is about 7 miles north-west of Harlow, in Hertfordshire. Businesses, contractors and managing agents in Ware use us for work on sealant joints. Ware is one of 371 places we cover in Hertfordshire. There’s a separate page for London, about 22 miles away.

Work on sealant joints is covered throughout SG12 and SG9. Streets here include High Street, Station Road and London Road. You will find Ware on or near the A10 and A119, so getting applicators and materials to site is simple. Close to Ware, our area also takes in Thundridge (1 mile north), Cold Christmas (2 miles north-east), Wadesmill (2 miles north), Chapmore End (2 miles north-west) and Tonwell (2 miles north-west). Nearby towns on our patch include Stevenage (9 miles north-west), St Albans (13 miles west), Bishop's Stortford (9 miles north-east), Welwyn Garden City (7 miles west), Harpenden (14 miles west) and Hitchin (14 miles north-west).

Around Ware

Locally, jobs take us to sites close to Hertford Regional College, The Chauncy School and The Albion Public House and the streets around them. Ware has its own railway station: Ware station. Nearby you will also find Barrowfield (1.2 miles south-west) and Hertford County Hospital (2.8 miles south-west). Green spaces nearby include King's Meads.

Map of Ware © OpenStreetMap contributors

What affects the price in Ware

The price varies from site to site. Expect it to depend on:

  • How accessible the joints are
  • The size and state of each joint
  • Distance, for remote addresses
  • The product specified

The price depends on the quantity of joints, how much old material needs removing and how the joints are reached. Call for a quote when you’re ready.

What to include in your enquiry

However big the job, these details speed things up:

  • Any specification or named product
  • The postcode of the building
  • Drawings or a marked-up plan, if available
  • Photos of the joints, close up and from further back

Need a figure for a tender or a budget? Send the scope and any drawings, and we will return a fixed quote that you can work with. If you have questions first, call the office on 01277 525 020 or email the details over.

What we are called out for in Ware

When a bead peels cleanly off one face, it has failed in adhesion. The usual causes are poor preparation, a missed primer, contamination on the joint face or sealant bonded to the base of the joint. It’s one of the commonest faults we find on earlier work.

Common reasons buildings call us in:

  • Weathered facade sealant that no longer flexes
  • Earlier reseals applied straight onto the failed bead
  • Sanitary sealant that has gone black and patchy
  • Window and door perimeter joints that have cracked open

Shops and cafés around stations like Ware station (to the south of Ware) trade from early, so work is timed around them.

Comparing quotes

  • How they’ll work around occupants
  • How the joint faces will be prepared and primed
  • What level of public liability insurance do they hold?
  • How joint depth will be controlled

Questions to ask before you appoint anyone

Different surfaces, different methods

Washrooms and toilets

Mould that has grown into washroom sealant can’t usually be cleaned out. The lasting answer is removal, preparation and a new sanitary bead, room by room if that suits the building.

Facade and cladding joints

Facade joints move every day as panels warm and cool. The product has to suit the movement, and the depth has to be controlled with backing. We confirm the access in place before we quote.

Site staff or a sealant specialist?

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. For that reason, many FMs and contractors use a sealant specialist from the outset.

For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.

Questions we are asked in Ware

Does a hotel in Ware need to shut while its sealant is renewed?

Almost never. The work is phased so most rooms stay available. We agree the order of rooms and the timings with you before we start.

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

Yes, we can typically get close to most finishes from the product’s colour range. Send colour references or photos and we’ll confirm what’s available for the product.

Are you CHAS accredited?

Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.

Is the old sealant taken out first?

Full removal is part of every quote. Sealing over traps water and lifts once the joint moves and isn’t worth paying for.

Will you just go over the old sealant?

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

How long does a job like this take?

It depends on the scope, though a typical visit usually takes as long as the agreed scope needs, from a single visit to a programme spread over several weeks. For bigger or phased jobs, we will set out a timescale with the quote.

What do you need from us to quote?

The main factors are metres of joint, removal, access, the product and how many phases there are. To get a fixed price, send details through our quote form, or phone or email us.

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. Most work in Ware is one building at a time: a school, a unit, an office or a block. Your photographs, drawings or a site visit come first, followed by a fixed quote.

  1. We start with the evidence: photographs, drawings or a look on site.
  2. A fixed quote follows, with removal and preparation included.
  3. We agree the order of work, access windows and site hours with you.
  4. Each joint is stripped, cleaned back to sound faces and primed where the maker specifies.
  5. Backing goes in, the new sealant is laid and tooled, and the area is left neat.
  6. Completed areas are signed off with you under our 12-month guarantee.

What we need from you

  • Explain the parking and delivery arrangements
  • Share the asbestos register for older buildings
  • Send any specification or drawings in advance

Quotes

Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.

Get a quick quote

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Accreditations

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