
Facade and window perimeter sealing in High Cross, Hertfordshire
Need facade sealing in High Cross? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.
- Draughts around frames and panels
- Failed seals around shopfront and entrance frames
- Failed sealant on precast panel joints
Need facade sealing in High Cross?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
From enquiry to sign-off
We schedule the visit to fit the site hours and access windows you give us. While we’re working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. If others near High Cross need work, visits can be combined, which keeps travel down. A fixed quote is given before anything starts.
- Access, site rules and timing are settled with the client up front.
- We only seal when joints are dry and within the product’s temperature range.
- We remove the old bead and check the edges are sound.
- Faces are cleaned, primed where needed and backed.
- Sealant is gunned in and tooled hard onto both faces.
- We hand over with our 12-month workmanship guarantee.
Before we start on site
- Have the specification and drawings to hand
- Point out any areas we must not close
- Send asbestos survey details if the building is pre-2000
Ask for a quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price the work to it. Smaller jobs need nothing more than photographs and a few notes.
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Facade sealing in High Cross, done properly
Installing framed glazing systems isn’t part of our work. What we seal are the joints around them: perimeter joints where frames meet the structure, panel joints and window perimeters. We work on coping and flashing joints, window and door perimeters and cladding panel joints, and the usual reasons a site gets in touch are gaps between rainscreen or cladding panels and perimeter sealant that has split or peeled away. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in High Cross, that means joint design, primers and backing rod as standard.
In the countryside around places like High Cross, conversion schemes put new frames into old stone, flint, brick or timber. A product that grips an irregular face, with a colour that suits the building’s character, is normally what’s needed.
Our 12-month guarantee is about workmanship, not wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we’re clear about what is covered before work starts.
- Location
- High Cross (SG11)
- Wider area
- Hertfordshire
- Cover
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Phone
- 01277 525 020
- Last updated
- 3 November 2026

Cost factors for facade joints
Each job is priced on its own details. The things that drive the figure:
- Access and working height
- Whether the work must be split into stages
- Quantities, in metres or numbers
- Whether old sealant has to be cut out first
Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote, and you’ll have a fixed figure to work with.
Details that help us quote
We can often quote from photographs and a few details. It helps to include:
- The asbestos register, for older buildings
- Approximate linear metres or a joint schedule
- How the joints are reached, and at what height
- Clear photos of the problem areas
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we will arrange one.
Leave it or put it right?
Leaving failed perimeter sealant also makes the eventual job bigger: edges get wet, render and timber deteriorate and frames can move. Acting at the first sign of splitting keeps the fix simple. Converted and older buildings near places like High Cross tend to move, and aged sealant cracks. The right product, sized to the joint, copes much better.
Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote.
What you get with us
- Constructionline member for supplier checks
- Standard and matched colours in many product ranges
- Colour agreed before work starts
- Joints cleaned back to sound surfaces
See our cost guide and our accreditations.
Doing it in-house
Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.
Signs you need facade sealing in High Cross
A frequent fault is a bead stuck to the joint’s rear face as well as its sides. Without rod or bond-breaker tape, the bead is held back and rips when the facade moves.
Clients normally get in touch after noticing something like this:
- Perimeter sealant that has split or peeled away
- Unsightly perimeter sealant on a visible elevation
- Perimeter joints where frames meet the structure
- Air leaks through failed facade joints
New units and refits on sites such as Thundridge Business Park (1 mile south-west of High Cross) need their panel and perimeter joints sealed to the specification.
Before you book anyone
- The named product and why it was chosen
- How long is the guarantee, and what does it include?
- Will RAMS and insurance details be available?
- What level of public liability insurance do they hold?
What sealant work can’t fix
Before quoting, we check that sealant is the right answer. It won’t put right:
- Damp caused by condensation inside the building
- Joints whose design needs changing by the specifier
- Replacing glass or failed glazing units
If in doubt, call the office on 01277 525 020 or email us and we will say what we think.
Joints and surfaces we work on
- Perimeter joints where frames meet the structure
- Coping and flashing joints
- Cladding panel joints
- Window and door perimeters
- Shopfront frames
- Stone and brick facade joints
Places near High Cross
Also in High Cross
Common questions from High Cross clients
Can you work at a site such as Thundridge Business Park, by High Cross?
Yes, sites like Thundridge Business Park are within our area, along with the rest of High Cross. To start, just call the office on 01277 525 020 or send photos by email with the unit, the joints involved and your access times.
Would you work within a site like Hertford County Hospital?
Yes. Healthcare sites are among the places we work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
Is the work guaranteed?
Yes. The 12-month guarantee covers our preparation and application, but not damage, misuse or other trades’ work.
Which sealant will you use?
The specification comes first, if there is one. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
Do you have public liability insurance?
Yes. We are fully insured, including public liability cover.
Do you use silicone for external joints?
It depends on the joint, the substrate and any specification. Specifications often refer to BS EN 15651-1 for facade sealants or BS EN 15651-2 for glazing and we follow the specified product.
Can you work while the building is occupied?
Yes, with some planning. Tell us your site hours and access windows and we will plan around them.
Mastic packages on High Cross sites
High Cross sits in one of the drier corners of the country, the South East. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, so we time external mastic for dry faces and agree it with the site team. A 2-mile radius around High Cross takes in a number of hotels. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up.
For contractors at a school such as Thundridge Church of England Primary School, sealing has to be finished before term starts. Work at a hotel such as The Feathers Hotel (0.7 miles south-west of High Cross) tends to be programmed around bookings, mastic included.
High Cross is about 2 miles north of Ware, in Hertfordshire. Any commercial site in High Cross is covered, for single jobs and planned programmes alike. We work across 371 places in Hertfordshire, large and small. Our London page has more on work in that area (24 miles or so).
Business premises anywhere in SG11 are within our area for facade joints. For a building on North Drive, Chestnut Grove and Poplar Close or nearby, we can quote for facade joints. We also cover Wadesmill (1 mile south-west), Standon Green End (1 mile north), Thundridge (1 mile south), Cold Christmas (1 mile south-east) and Barwick (1 mile north-east). Bigger towns within reach include Stevenage (8 miles north-west), St Albans (15 miles south-west), Bishop's Stortford (8 miles east), Welwyn Garden City (8 miles south-west), Harpenden (14 miles west) and Hitchin (13 miles north-west).
What’s near High Cross
In High Cross, that means premises near The White Horse Inn, among other places. The closest station to High Cross is Ware station, about 2.8 miles south of the centre. Well-known places in the area include Museum of Street Lighting (3.4 miles south) and Hertford County Hospital (4.6 miles south-west). Not far away are King's Meads.