Ashgate · Listed Buildings
Secondary Glazing for Listed Buildings Properties in Ashgate, Chesterfield
Listed Buildings stock is a large part of what stands in Ashgate (S40). The window problem in these houses is no permitted route to modern glazing performance, and locally it is compounded by cold bays and rattling metal casements. Most enquiries here come from owner-occupiers doing one or two rooms at a time, so we price per opening rather than per house. Coverage runs across Chesterfield and the surrounding S40, S41, S42 districts, with Ashgate (S40) among the areas we survey most often.
Installs are room-side only, so scaffolding is never needed and the exterior is untouched.
We will tell you when secondary glazing is the wrong answer — it happens, and it saves everyone time.
Measured performance figures come from our own post-install testing, not manufacturer maximums.
How we would spec this
| Property type | Listed Buildings (any) |
|---|---|
| Original glazing | protected historic joinery |
| Dominant problem | no permitted route to modern glazing performance |
| Local window stock | casement bays |
| Consent position | No conservation designation recorded for this area, so the choice is technical rather than a consent question. |

Why this area is different
We produce free consent-ready drawings and specifications with every listed-building quote.
Vision HD and Vision Ultra slim profiles are the standard specification for Grade II* and Grade I properties.
Listed Buildings properties date from the any, and the original glazing is protected historic joinery.
No permitted route to modern glazing performance — that is what we are asked to solve in Ashgate.
Local conditions matter: cold bays and rattling metal casements.
Ashgate sits 1.5 miles from central Chesterfield, near Ashgate Hospicecare, so a survey visit is usually within the week.
Recent installs nearby
A61 corridor 1930s semi
Front-facing Crittall casements enclosed with hinged secondary units. Traffic noise reduced from disruptive to background.
St John's Ranmoor stained-glass shield
Slim satin-anodised secondary lift-outs protecting original stained-glass panels from thermal shock.
Nether Edge Grade II sash retrofit
Six original box sashes fitted with balanced vertical secondary sliders — full listed-building consent secured in six weeks.
Local reference points
- Area
- Ashgate (S40)
- Town
- Chesterfield, Derbyshire
- Housing era
- 1930s semis and modern detached
- Typical windows
- casement bays
- Landmark
- Ashgate Hospicecare
- Conservation area
- No
- Property type
- Listed Buildings
- Build era
- any
Common questions
Can Low-E glass be combined with acoustic laminated?
Yes — most heavy specifications combine both, so you get acoustic gain and thermal gain in the same install.
How is the quote calculated?
We survey and template every opening on site, then quote in writing per opening — no per-square-metre pricing that hides oversize charges.
Is there a warranty?
Yes — 10 years on the manufacture and installation, and a manufacturer's warranty on the glass units.
Can I still open the original window?
Yes — every sliding, hinged and lift-out unit is designed to move clear so you can operate the primary window behind it.
How does this compare to replacement double glazing?
A modern secondary unit with Low-E glass and a 100 mm cavity outperforms most existing sealed double-glazed units — and it works on windows you legally can't replace.
Can we do one room now and the rest later?
Yes. We template and price per opening, so a later phase is quoted at the same rate — there is no penalty for splitting the work.
Will it get in the way of curtains or blinds?
Rarely. Reveal-fixed units sit inside the existing recess; where the recess is shallow we face-fix and reposition the blind, which we flag at survey rather than on the day.
How the job runs
- Step 1
Tell us how many openings the property has — listed buildings layouts are consistent enough that we can price closely from a description.
- Step 2
Survey and template every opening, including any that have already been altered by a previous owner.
- Step 3
Manufacture, typically two to three weeks.
- Step 4
Install room-side in a single day for most whole-house jobs in Ashgate.
Window types found in Ashgate
Listed Buildings in Ashgate — the short version
No permitted route to modern glazing performance is the recurring issue in listed buildings stock, and in Ashgate it arrives alongside cold bays and rattling metal casements. A room-side secondary system handles both without touching the original windows.
Start with one room
Send the opening sizes for the worst room and we will price that first — extending later costs no more. Listed Buildings layouts in Ashgate are consistent enough that we can price closely from a room count.
