Beancross Rd, Polmont, Falkirk FK2 0XS Open today · 9am–5:30pm 07367 086350 07861 958262 AboutAbout Our story & team Reviews Verified Google reviews Garden RoomsAll Garden Rooms Explore the full range Home Offices Work-from-garden studios Garden Gyms Private fitness spaces Garden Bars & Lounges Entertain in style Annexes & Guest Rooms Extra living space SaunasBarrel Saunas Jonas Grand From £8,995 Jonas Grand From £8,995 Jonas S From £6,495 Jonas Teak From £6,995 Joris Grand From £9,495 Teak From £8,495 Cube Saunas Ebony From £10,995 Ebony From £10,495 Ula Classic Beige Full-Glass From £9,995 Ula L From £11,495 Ula L From £12,495 Ula Micro From £8,495 Ula Mini From £8,995 Ula Mini From £9,495 Ula Mini From £9,295 Modular Saunas Celsium Herkus L From £12,995 Tauras Grand Ebony From £16,995 Tauras Modular Air with Aiste Grand Hot Tub From £19,995 Hot TubsAll Hot Tubs Wood-fired thermowood soaking tubs Aiste Grand From £6,995 Benas From £5,495 Log CabinsAll Log Cabins 30 designs, 34mm to 68mm walls Cabin Range & Prices Full 2026 price list Cabin Photo Gallery Real Scottish installations Sheds, Garages & Summerhouses From £500, installed 2026 Shed Price List Sheds, garages, playhouses Glamping & Residential Cabins Pods, barrels & lodges Other ServicesBBQ Huts Year-round outdoor cooking Glamping & Residential Holiday-let & annex builds Sheds, Garages & Summerhouses From £640, installed Outdoor Kitchens Built for Scottish weather Composite Decking Low-maintenance decks Bespoke Design Service Full design & build Our WorkRequest Estimate Cube Saunas # Ebony Cube.Harvia heater, mirror-glass door. The ebony cube specification with a reflective mirror-glass door and Harvia heater, privacy from outside, panoramic view from inside. Request Your Estimate 07367 086350From £10,495 · Delivered & installed Overview ## Ebony Cube Sauna, Harvia Mirror Door. This variant of the ebony cube specifies a one-way mirror-glass door and a standard Harvia heater, for owners who want privacy from the outside without giving up the panoramic view from inside. The mirror-glass is a specialised reflective toughened panel: from the garden side it reads as a bronze-mirrored surface reflecting the surrounding planting. From inside the sauna, sitting in ambient light, it's fully transparent, you look out at the garden without being watched. It's the specification we recommend for overlooked urban gardens, close-boundary installations, and short-let properties where the sauna is visible from a public footpath. The Harvia heater keeps the price under the HUUM Black Glass edition without compromising the exterior look. Key features ## What makes it different. ### Mirror-glass reflective door One-way bronze-mirrored toughened glass, private from outside, panoramic from inside. ### Shou Sugi Ban ebony cladding Charred and oiled spruce exterior, deep matte black. ### Harvia 9kW electric heater Finnish-made industry-benchmark heater with rock cradle and digital control. ### Fully-insulated cube 100mm rockwool insulation, vapour barrier, hemlock interior lining. ### 3–4 person capacity Single-tier bench for architectural clarity. Two comfortable, four social. ### Ideal for overlooked gardens Solves the privacy problem for urban and close-boundary installations. Specification ## The numbers behind the object. Capacity3–4 adults External footprint2.2 x 2.0 m Interior ceiling height2.1 m CladdingShou Sugi Ban charred spruce DoorToughened bronze-mirror glass, one-way Insulation100mm rockwool LiningKnot-free western hemlock HeaterHarvia electric 9kW Heat-up time≈ 30 minutes Power requirement32A single-phase Warranty10 yr structural Living with it ## How it actually works day to day. The mirror door is a genuine solution to a real problem. Overlooked gardens, terraced houses, small courtyards, close-boundary new-builds, mean panoramic-glass saunas can feel exposed. The bronze mirror is an elegant answer. The one-way effect depends on ambient light. Inside the sauna at ~150 lux (a low ambient level), you look out to a garden lit by daylight or normal outdoor lighting and it reads as clear glass. From the garden side at daylight levels, the door reads as a bronze mirror. In pitch dark on both sides, sauna and garden, the effect breaks down. In practice this only matters at night with no outdoor lighting and the sauna interior lit; a soft warm dimmable LED is our recommended solution. Best for ## Who typically buys this one. - Overlooked urban and terraced gardens - Close-boundary new-build gardens - Short-let properties visible from footpaths or neighbouring properties - Owners who love the panoramic view but need outside privacy Real installations ## Ebony in Scottish gardens. Every photograph on this page is a genuine Signature Garden Rooms installation. Frequently asked ## Straight answers. If your question isn't listed, call Ryan on 07367 086350. How does the mirror-glass door work?It's a specialised toughened panel with a reflective bronze coating on the outside. From the brighter garden side it reads as a bronze mirror; from the dimmer sauna interior it's fully transparent. The effect relies on the interior being darker than the exterior. Does the mirror effect work at night? Is it privacy glass or full mirror? Is the glass toughened and safe? Can I choose a Harvia model? How is this priced against the HUUM Black Glass spec? What's the lead time? What's the warranty? Next step ## Ready to talk about the Ebony Cube Sauna, Harvia Mirror Door? Tell us your garden, your access, and roughly when you'd like it in. We'll come back with a considered price, honest lead time, and any planning notes for your site. Request Your Estimate 07367 086350 Fully insured · £5m public liability · Falkirk-based, working across Central Scotland Explore the site ## Popular pages & service areas Other services - insulated bespoke garden rooms in Falkirk - premium log cabins in Central Scotland - Nordic BBQ huts for Scottish gardens - saunas and hot tubs supplied and installed - outdoor kitchens built for Scottish weather - composite decking installers near you - timber sheds, garages and summerhouses - bespoke garden building design and build - garden rooms in Falkirk - garden rooms in Stirling - garden rooms in Glasgow - garden rooms in Edinburgh - garden rooms in Livingston - garden rooms in Dunfermline - recent installs across Central Scotland - verified Google reviews (4.6★) Bespoke, fully-insulated garden rooms designed and built across Falkirk and Central Scotland. Explore - Garden Rooms - All Services - Our Work - Service Areas - About - Reviews Contact - Beancross Rd, Polmont,Falkirk FK2 0XS - 07367 086350 - 07861 958262 - ryan@amrgardenbuildings.co.uk Opening hours - Mon – Fri9:00 – 17:30 - Saturday9:00 – 17:00 - Sunday9:00 – 16:00 Leave a Google review © 2026 Signature Garden Rooms. All rights reserved. · Formerly AMR Garden Buildings · Owned and run by Ryan Meldrum PrivacyCookiesTermsContact CallRequest Estimate