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

Coloured and colour-matched sealant in Gilston, Hertfordshire

Coloured and colour-matched sealant for visible joints in Gilston. CHAS accredited and fully insured, with a 12-month guarantee.

  • Fit-outs with a sealant colour in the specification
  • Weathered sealant that no longer matches
  • Coloured joints that have cracked with movement
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
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
Constructionline member
£5m public liability

Coloured sealant across Gilston

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

Coloured sealant in Gilston

Natural materials vary across a single elevation: a stone or brick facade shifts in tone from one area to the next. We choose a colour that reads well across the surface rather than chasing one spot, agreed on site where needed. The enquiries we see most involve joints that need to match a new RAL frame colour and hotel refurbishments with a set colour scheme, on office fit-out finishes, powder-coated and anodised frames and cladding panels. For commercial sealant work in Gilston, you deal with one contact from quote to sign-off, whether it’s one building or several.

Rural business units near smaller places such as Gilston are frequently converted agricultural buildings. Their mix of old walls with new frames, partitions and floors means many joints between unlike materials.

Building owners and contractors get the same cover: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Gilston (CM20)
Wider area
Hertfordshire
Cover
12 months on our workmanship
Quote
A fixed quote before we start
Call
01277 525 020
Last updated
3 November 2026

FAQs: Gilston

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

Rarely. Rooms or floors are done in turn, so the rest of the hotel keeps trading. We agree the order of rooms and the timings with you before we start.

Is Gilston too small for you to travel to?

No. Small places get the same service as large ones. We work across Greater London and the South East. Where we can, we group nearby jobs to make the most of each trip.

Can you work while the building is occupied?

In most cases, yes. Phased work can be planned so areas stay in use, with each area protected and signed.

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.

Can you fit around our working hours?

We are in the office from 8am until 5pm, Monday to Friday. Tell us your site hours and access windows and the work will be fitted around them.

Are your applicators CSCS-carded?

Yes. Our applicators hold CSCS cards, as many construction sites ask for.

What happens if old sealant might contain asbestos?

Managing asbestos is the dutyholder’s responsibility, so we will ask for the register before work on an older building. If anything suspect turns up, we stop until it’s tested.

Building owners, agents and FMs in Gilston

Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.

Main contractors use us as their sealant subcontractor on new-build and refurbishment projects. Programme, specification and site rules come first.

What we can’t put right

Honesty saves time and money. Fresh joints won’t solve:

  • Materials with mixed tones that defy a single match
  • Paintable products in joints they aren’t suited to
  • Cleaning or repairing the surrounding finishes

Not sure which it is? You can phone 01277 525 020 or email a schedule or drawings and we will tell you honestly before you book.

What we seal

  • Cladding panels
  • Office fit-out finishes
  • Shop-fit joinery and counters
  • Powder-coated and anodised frames
  • Natural stone and brick
  • Hotel bathrooms and public areas

Frontages, fit-outs and joints in Gilston

Gilston is about 22 miles from central London. This part of the South East is dense with business parks and out-of-town offices. Occupiers with several premises in the region tend to prefer one contractor and one point of contact. Gilston sits in one of the drier corners of the country, the South East. Even so, outside sealing waits for a dry joint, and cold, damp mornings can delay it.

Industrial estates such as Mead Park Industrial Estate (to the east of Gilston) have offices, trade counters and welfare areas whose sealant ages like any other building’s. Offices and shops close to stations such as Harlow Town station (to the south of Gilston) tend to be busy all day, so sealant work is planned around opening hours. A hotel such as Oasis Hotel (to the east of Gilston) shows how much sealant a hospitality building has on show, from bathroom joints to the bar.

Gilston is about 2 miles north-west of Harlow, in Hertfordshire. Anywhere in CM20, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Across Hertfordshire, 371 places are covered, Gilston among them. London is covered too, around 22 miles from Gilston.

We cover the CM20 postcode districts for colour-matched joints. For a building on Pye Corner and Eastwick Road or nearby, we can quote for colour-matched joints. If your building is just outside Gilston, we cover Eastwick (1 mile south-west), Little Parndon (1 mile south-west), Great Parndon (2 miles south), Staple Tye (3 miles south) and Roydon (3 miles south-west). Further afield, our area takes in Stevenage (15 miles north-west), Bishop's Stortford (6 miles north-east), Welwyn Garden City (13 miles west), Hoddesdon (6 miles south-west), Cheshunt (8 miles south-west) and Hatfield (14 miles west).

Landmarks near Gilston

Recent enquiries here include premises near Burnt Mill Academy, The Plume Of Feathers pub and Harlow Marsh and the streets around them. The closest station to Gilston is Harlow Town station, about 0.6 miles south. A little further out are Harlow Mill (1.2 miles east) and Princess Alexandra Hospital (1.4 miles south-west). Green spaces nearby include Hunsdon Mead.

Map of Gilston © OpenStreetMap contributors

How a job runs

Diagnose, treat, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then we prepare and seal each joint with the specified product, and the job ends with a walk round and sign-off. Jobs in and around smaller places like Gilston are normally planned as a single visit, so we ask for photos and rough sizes first. That way the right products come on the day.

  1. We start with photographs, drawings or a visit to see the finishes.
  2. We send the closest colours from the product’s range.
  3. The programme and access are agreed, including any phasing.
  4. Joints are prepared, primed where specified and backed.
  5. We seal in the approved colour and tool it smooth.

What we need from you

  • Share the asbestos register for older buildings
  • Make sure the joints can be reached
  • Arrange parking or a loading space

Ask for a quote

Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. To get it moving, speak to us on 01277 525 020 or email the details over.

Get a price

Advice

Keeping the joints sound

Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. Our advice:

  • Plan full-run reseals on visible elevations
  • Record the product and colour reference on the building file
  • Ask contractors to check the colour before resealing
  • Clean coloured joints with mild products

Colours can soften with light and weathering. That is normal for exposed sealant, and resealing restores the look when the time comes.

Make sure every contractor knows which sealant and colour are on the building file. It stops mismatched repairs creeping in.

Surface by surface

Brick and masonry

Brickwork joints usually look best in a colour close to the mortar or brick. The nearest colour in the range is agreed with you.

Cladding panels

Cladding joints are often seen across a whole elevation. We pick a facade-grade sealant in a shade that sits with the panels, rated for the joint’s movement.

Doing it in-house

Redoing a failed joint usually costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.

Accreditations

Trusted. Accredited. Insured.