Hertfordshire · England

Graveley Commercial Sealant

Washrooms, bathrooms and kitchens in Graveley need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.

  • Water marks on ceilings under bathrooms
  • Leaking joints in shower rooms and changing areas
  • Mouldy washroom sealant that staff and guests notice

Commercial sealant near Graveley

Can I do it myself?

If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.

Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.

About our commercial sealant in Graveley

We fit the work around your building. We can work room by room, floor by floor or in batches, and out-of-hours work or early starts can be arranged where it helps. If you have split sealant around staff kitchen worktops and sinks and tired sealant ahead of a health and safety audit, we can help.

For holiday lets, converted business premises or a community building near Graveley, the washrooms, kitchens and any fire-rated joints need the same care as a big site.

We stand behind the work with a 12-month guarantee, so you’re covered after we’ve gone.

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Where
Graveley (SG4)
Region
Hertfordshire
Guarantee
A year, on every job
Quote
Quoted before any work starts
Call
0345 464 0079
Page updated
26 October 2026

Why act early in Graveley

Sealant work is quick by the room: the job takes a few hours for a single washroom, longer for a whole building. After that, each area needs its cure time before use, so planning the order matters more than the hours on site. Older cottages and farmhouses around Graveley can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or drop us an email.

Why book with us

  • 20+ years of sealant experience
  • Colour picked to suit the job
  • Anti-fungal silicone where joints get wet
  • White, clear, grey or coloured to suit, where the product allows

Read what affects the cost or what customers say.

When it is not the sealant

Sealant isn’t the answer to every problem, and we’d rather say so up front. It will not solve:

  • Faulty shower valves and leaking traps
  • Damaged sanitaryware that needs replacing
  • Tiles coming off the wall

If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think before you book.

Joints and surfaces we work on

  • Welfare facilities
  • Retail & leisure sites
  • Student & care accommodation
  • Rental portfolios
  • Office washrooms & kitchens
  • Hotel bathrooms

The process

Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it normally takes as long as the scope needs, from one welfare room to a full building. Somewhere like Graveley needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.

  1. We start by looking at the rooms and agreeing what’s needed.
  2. Working hours are agreed, including early starts or out-of-hours work where it can be arranged.
  3. Each area is protected and stripped of old sealant.
  4. Joints are dried, then resealed and tooled neatly.
  5. Housekeeping or site staff are told when each area can be used.

Preparing for the visit

  • Mention any sign-in or site rules at work premises
  • Clear items away from the joints we’re working on
  • Try not to wet indoor joints just before the visit

How to get a quote

For commercial sealant in Graveley, phone 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you’ll get a clear quote before work begins.

Get a quick quote

Related advice

Signs you need commercial sealant in Graveley

Larger buildings move, and stud walls move more than solid ones. Joints between different materials take the strain.

Signs it’s time to call us include:

  • Too many rooms to reseal without closing the building
  • Shower leaks reaching the floor below
  • Tired sealant ahead of a health and safety audit
  • Split sealant where wet room floors meet walls

Managing a site like Graveley Primary School? Then sealant in washrooms, kitchens and changing areas can be renewed around term times or opening hours.

Questions to ask before you book

  • How the colour is chosen
  • How long the guarantee is
  • What preparation is included
  • What insurance they hold

Choosing a sealant specialist

Commercial buildings in Graveley

Most of the South East has hard water, so limescale builds up on sealant, grout and fittings.

Letting a property close to Stevenage station? Then sealant work can be quoted for a single flat or a whole portfolio. For buildings such as Church of St Mary, its kitchen and washroom sealant needs looking after like anywhere else.

Graveley is about 2 miles north-west of Stevenage, in Hertfordshire. We provide commercial sealant to householders, landlords and businesses in Graveley and nearby. Our area takes in 381 places across Hertfordshire, from the larger towns to small villages. We also work in London, around 31 miles away.

Every address in SG4 is within our area for commercial sealant. That includes homes and businesses on High Street, Oak Lane and Ashwell Close. If you are just outside Graveley, we cover Todd's Green (1 mile south-west), Great Wymondley (1 mile north-west), Little Wymondley (1 mile west), Titmore Green (1 mile south-west) and Lower Titmore Green (1 mile south-west). We also work in nearby towns such as St Albans (14 miles south), Welwyn Garden City (10 miles south), Harpenden (10 miles south-west), Hitchin (3 miles west), Hoddesdon (15 miles south-east) and Hatfield (12 miles south).

Landmarks near Graveley

Typical jobs here are in homes near Waggon And Horses Public House, Church of Saint Nicholas and The John Henry Newman School and the streets around them. The closest station to Graveley is Stevenage station, roughly 2.4 miles south of the centre. Nearby you will also find Wymondley Castle (1.1 miles west) and Stevenage Museum (2.4 miles south). Open spaces near Graveley include Purwell Ninesprings.

Map of Graveley © OpenStreetMap contributors

Graveley questions

Can you do commercial sealant in Graveley?

Yes, Graveley is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.

I let a flat near Stevenage station. Can you help?

Yes. We work for landlords and agents as well as householders. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.

Do you hold any approvals?

Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.

Do you take out the old sealant first?

Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.

How much does commercial sealant cost in Graveley?

There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before work begins.

Can I choose the sealant colour?

We’ll suggest a colour to suit the surroundings, from white and clear to greys and other shades. The product needed can limit the range.

Do you guarantee commercial jobs?

Yes. Every job, domestic or commercial, carries our 12-month guarantee.

What information do you need?

Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply phone 0345 464 0079 or drop us an email.

Landlord and commercial work in Graveley

Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.

Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.

How to look after the new joints

Aftercare is simple:

  • Schedule work around occupancy
  • Include the silicone on your room checklists
  • Put a squeegee in each shower
  • Keep extractor fans working and serviced

Extract fans need to work. Where a room has no window, the fan is what dries it out, and mould comes back faster without it.

A room that cannot be let or used is lost income. Catching faults early means they can be put right in a short window, before they become leaks that take the room out of use.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job