A shopfront
Get Your Signage Seen Standard, free
Seven sign types, how each one is built, the letter size people can read from the road, and how sign tax and permits work in Bangkok. 24 pages.
Get the free guide
Whatever sign you want,
just tell us.
อยากได้ป้ายแบบไหน บอกเราได้เลย
From one shopfront to a whole building: shop signs, facade letters in Thai and English, rooftop and pylon signs, made in our Bangkok workshop since 1990 and installed by our own crew. Pick your scale and take the free guide for it.
A whole building
The Building Signage Planner, free
For developers, building owners, public agencies, head offices and architects. What the law asks, how big the letters must be, what the tax will cost, and how long it takes.
Get the free guide See building signage below
Is your sign legally a building?
How tall the letters should be
Thai and English, and the yearly tax
Inspection, approvals and timing
A one-page checklist to tick before you sign a quote
Or message PLANNER to LINE
@617qqzie
The Cassette Music Bar
Iyashi Clinic
True
Pathumwan Office
W22 Hotel
Hotel Nida
Build types and lead times.
ประเภทงานและระยะเวลาผลิต
Lead times start from artwork sign off. Permits and building approvals can add days that are outside our hands, and we tell you that before you pay.
Build types, materials, typical use and lead time
Build
Materials
Typical use
Lead time
Front lit channel letters
Acrylic face, aluminium return, LED modules
Shopfronts, clinics, showrooms
4 to 6 days
Halo lit letters
Stainless or painted aluminium, rear LED
Hotels, offices, premium retail
5 to 8 days
Fascia lightbox
Steel frame, printed translucent face
Shophouses, service centres
4 to 6 days
Neon
Hand bent glass, transformer, acrylic backing
Bars, cafes, interiors
7 to 12 days
Roadside billboard skin
Printed PVC banner, tensioned on frame
Highways, arterial roads
3 to 5 days
Rooftop letter frame
Hot dip galvanised steel, lit letters
Office and branch buildings
14 to 21 days
Vehicle wrap
Cast vinyl with gloss or matte laminate
Delivery fleets, vans, trucks
2 to 4 days
Full out of home service,
from the first file to the last lamp.
ดูแลครบวงจร ตั้งแต่ไฟล์แรกถึงหลอดสุดท้าย
Six things we do. You can take one of them or the whole run.
01
Artwork consultation
A file read the way the road will read it.
Most jobs that go wrong were decided in the artwork stage. Letter height against viewing distance, colour behind acrylic, whether the layout survives being cut into real material, all settled before a price is agreed.
File check on AI, EPS, PDF and PSD, or a redraw if all you have is a photo
Letter height matched to the distance drivers and walkers actually see from
Colour proofed under the same LED you will be lit with
Permit ready drawings with dimensions and fixing details
02
Next day production
Cutting, printing and wiring happen in our own building.
Your job is never split across three subcontractors and left waiting. Routing, acrylic forming, LED assembly and large format printing are all under one roof on Wongwian 22, which is what makes a next day start possible.
Large format print for banners, billboard skins and vehicle graphics
CNC routed acrylic and aluminium letters, formed and painted in house
LED modules and drivers assembled and burn tested before they leave
Every build lit and photographed in the workshop before loading
03
Installation management
Seven days from approval to lit, and you are told each day.
Installation is a scheduling job as much as a climbing job. Building permission, lift hire, a licensed electrician, road access windows and cleanup all have to line up, and chasing them is our work, not yours.
Building and juristic person permission handled by us
Boom lift or scaffold booked to match the structure and the pavement
Night crews when the road cannot lose a lane in daylight
Handover photos in daylight and after dark, plus fixing details for your records
04
Visibility review
Checked from the road before anything gets built.
A sign blocked by a tree, a power pole or a competing board is money spent on nothing. Each approach gets walked and driven, then you see the view from the places your customers actually arrive from.
Photos from each approach lane, day and after dark
Obstruction check for poles, cables, trees and neighbouring signs
Height and angle recommendation for the traffic speed on that road
A second option when the first position does not hold up
05
Campaign maintenance
Signs live outdoors in Bangkok. They need visiting.
Heat, rain and dust take a sign apart slowly. A maintenance schedule keeps the face bright and catches a failing driver before half your name goes dark.
Face and letter cleaning on a schedule you set
LED module and driver replacement with matched colour temperature
Structural and fixing check after heavy storms
Fault response within 48 hours for sites under maintenance
06
Eyeball tracking
Numbers for the spot, not a feeling about the spot.
Counting what passes and when shows whether a board earns its rent, and whether morning or evening is the shift that matters for your business.
Vehicle and pedestrian counts by hour and day of week
Estimated dwell time at lights and crossings near the site
Day and night visibility rating for each position
A short report you can put in front of a landlord or a partner
Building signage in Bangkok
Your name,
on the whole building.
ชื่อของคุณ บนทั้งอาคาร
Facade letters in Thai and English, rooftop and pylon signs, lit or unlit. Made in our workshop on Wongwian 22 and installed at height by our own crew.
For building owners and developers, public agencies, head offices and factories, and the architects and contractors who specify their signs.
Get The Building Signage Planner
Department of Special Investigation, Bangkok. Thai and English names across the canopy, made and installed by our team, 2026.
Facade letters, rooftop signs
and pylons.
ป้ายตัวอักษรอาคาร ป้ายชื่ออาคาร และป้ายตึก
Facade letters in Thai and English
Cut, formed and painted letters for the building's name, sized for the distance people read them from. Both lines are drawn on your own facade before anything is cut.
Rooftop signs
Letters on a steel frame above the roofline, kept inside the limits the Building Control Act sets for rooftop signs.
Pylon and tower signs
A sign on its own structure at the entrance or the road, designed to pass the inspection that large signs need.
Lit or unlit
Front lit, halo lit or unlit. Every lit letter is powered and photographed in our workshop before it leaves.
Installed at height by our own crew
On ropes, a boom lift or a crane, at night if the building needs it. The people who fix the letters are the people who made them.
Four rules to know
before you order.
สี่เรื่องที่ต้องรู้ ก่อนสั่งป้ายอาคาร
Thai on top costs less, every year.
The yearly signboard tax on a 2 x 10 m building name, by the order of the lines.
8 cm
of letter for every 10 m of reading distance.
Measure from where people first see the building. 100 m away needs letters about 80 cm tall.
The full table in the planner
15 m
50 m²
25 m²
Large signs need a registered inspector.
15 m tall, 50 m² in area, or 25 m² on a roof or part of a building. The owner files the report.
Who checks, and how oftenA sign can legally be a building.
Under the Building Control Act, a sign over public space larger than 1 m² or heavier than 10 kg needs a permit before it goes up.
Sizes and weights in the planner All four, with sources, in the free planner
A planning summary from public sources checked on 20 October 2026, not legal advice. Your district office has the final word.
From survey
to switch-on.
ตั้งแต่สำรวจหน้างาน จนเปิดไฟ
Name letters usually take 2 to 4 weeks from approved drawings. Whole facades and rooftop signs get a dated schedule after our site survey.
Every job carries a written warranty, usually one year, with the structure, the lighting and the finish listed separately in your quote. The exact terms depend on the job.
Site survey
We photograph the facade from each approach, day and after dark, and measure.
Drawings and sizes
Letter heights, both lines, fixings and power, drawn on your own facade.
Approvals
Permit, juristic person or landlord, and the tax order of the lines, decided with you.
Fabrication
Cut, formed, painted and wired in our workshop on Wongwian 22.
Lit before it leaves
Every lit letter is powered and photographed in the workshop before loading.
Installation
Our own crew on ropes, a boom lift or a crane, at night if the building needs it.
Handover
Photos by day and after dark, fixing details, and the warranty for the job in writing.
A building we signed.
ตัวอย่างงาน: อาคารกรมสอบสวนคดีพิเศษ
The Department of Special Investigation headquarters in Bangkok: the Thai and English names across the canopy, made in our workshop and fixed by our own crew working from the canopy and the ground.
Checked on the ground
Lifted to the canopy
Fixed by hand
In place
Other names we have put on buildings
Building signage questions.
คำถามที่พบบ่อยเรื่องป้ายอาคาร
Short answers from The Building Signage Planner. The planner has the sources and the full tables.
Is a building sign legally a building in Thailand?
Some are. Under the Building Control Act B.E. 2522, a sign that hangs over a public space and is larger than 1 square metre, or heavier than 10 kg with its structure, counts as a building and needs a permit before it goes up. The permit fee is 4 baht per square metre, and the district office has 45 days to decide and may extend twice.
How tall should the letters on a building be?
About 8 cm of letter height for every 10 m of reading distance, by the sign trade's rule of thumb. That is 20 cm for 25 m across the street, 80 cm for 100 m from the main road and 1.6 m for 200 m from an expressway. It is the smallest letter that still reads, so a building name should be bigger.
Does the order of Thai and English change the signboard tax?
Yes. Under the Ministerial Regulation on signboard tax rates B.E. 2563, a fixed sign pays ฿5 per 500 sq cm a year in Thai only, ฿26 with Thai and English or pictures, and ฿50 with no Thai or the Thai below the English. For a 2 x 10 m building name that is ฿2,000, ฿10,400 or ฿20,000 a year. Signs of public agencies are exempt.
Which building signs need a registered inspector?
A sign 15 m tall or more, 50 m² in area or more, or 25 m² or more on a roof or as part of a building must be checked by a registered building inspector, and the owner files the report. Bangkok's notice of June 2026 says every year, while a July 2026 news report says every three years for signs, so confirm the interval with your district office.
How long does a building sign take?
Name letters usually take 2 to 4 weeks from approved drawings. Whole facades and rooftop signs get a dated schedule after our site survey, because permits and building approvals set the pace: when a permit is needed, the district has 45 days to decide under the Building Control Act and may extend twice.
What warranty comes with a building sign?
Every Thai Prasith Signtech job carries a written warranty, usually one year, with the structure, the lighting and the finish listed separately in your quote. The exact terms depend on the job.
Send us the shop
or the building.
ส่งรูปอาคารหรือแบบด้านมาที่ไลน์ เราช่วยวางแผนป้ายให้
For a shop, a photo and a rough width. For a building, the elevation drawing or a straight photo of the facade, the names in Thai and English, and the address. We reply with a drawing, the letter sizes for your reading distance and one price.
Talk on LINE
LINE
Call
Office
Workshop
Wongwian 22, Pom Prap, Bangkok 10100. Monday to Saturday, 08:30 to 17:30
