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Renovation & building

20 Best Addition & Alteration (A&A) Contractors in Singapore

Timber stud framing during an alteration job
Timber stud framing during an alteration job. Photo: Stilfehler, CC BY-SA 4.0

A&A works sit between a renovation and a new build. Think knocking through walls, adding a mezzanine, changing a shopfront or reworking a floor plate. Because some of that touches structure, it usually needs a qualified person and authority approvals, and the contractor needs to be set up for building work, not just finishing.

That's why this guide starts from BCA's general building workhead, CW01. Every firm here holds it and also does renovation or reinstatement work. We ranked them on their CW01 grade (C3 is the entry grade, then C2, C1, B2, B1, A2 and A1), how long they've been incorporated, what other BCA workheads they carry, and how much of their public record checks out.

How this list was ranked

Each firm gets 0 to 5 points on four things, multiplied by a weight: BCA CW01 (General Building) grade ×4, years since incorporation ×2, other BCA workheads ×2, and how complete its public record is ×1. The total is scaled to 10. We checked 64 firms and show the top 20. Google reviews are shown as not checked until we've checked them for every firm here. Full method

Quick comparison

Tell us the job and we'll pass it to firms that fit. No forms.

The ranking

1

Sunray Woodcraft Construction Pte. Ltd.

9.6/10

Sunray Woodcraft Construction was incorporated in 1987, so about 39 years ago, and its registered office is in Sungei Kadut in the North region. BCA lists it under CW01 at grade A1 (valid to 1 January 2027), and it also holds CR06, ME01, ME05, ME06. When we checked its website it described renovation, fit-out work.

Registered address
9 Sungei Kadut Street 3 Sunray Building, Singapore 729143
UEN
198703016K
Incorporated
1987 (39 yrs)
BCA CW01
Grade A1, valid to 1 January 2027
Other BCA workheads
CR06 L6, ME01 L6, ME05 L6, ME06 L5
HDB DRC listed
No / not on record
Office phone
+65 6566 2311
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade5 × 4
  • Years trading5 × 2
  • Other BCA workheads5 × 2
  • Public record completeness3 × 1

Record checked 16 October 2026 · source

2

Seng Foo Building Construction Pte. Ltd.

9.6/10

Seng Foo Building Construction was incorporated in 1988, so about 38 years ago, and its registered office is in Bukit Batok in the West region. BCA lists it under CW01 at grade B1 (valid to 1 January 2027), and it also holds CR09, CW02, ME05, ME06. When we checked its website it described renovation, fit-out work.

Registered address
2 Bukit Batok Street 23 #02-01 Bukit Batok Connection, Singapore 659554
UEN
198801331R
Incorporated
1988 (38 yrs)
BCA CW01
Grade B1, valid to 1 January 2027
Other BCA workheads
CW02 C3, CR09 L4, ME05 L1, ME06 L1
HDB DRC listed
No / not on record
Office phone
+65 6562 2235
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade5 × 4
  • Years trading5 × 2
  • Other BCA workheads5 × 2
  • Public record completeness3 × 1

Record checked 16 October 2026 · source

3

Anderco Pte. Ltd.

9.3/10

Based in Tuas in the West region, Anderco has 32 years on ACRA's books (incorporated 1994). Its CW01 registration is grade B1 and it also carries 3 other BCA workheads. When we checked its website it described alteration, reinstatement work.

Registered address
3 Tuas View Circuit Lbg Building, Singapore 637645
UEN
199400384G
Incorporated
1994 (32 yrs)
BCA CW01
Grade B1, valid to 1 August 2027
Other BCA workheads
CW02 C1, CR01 Single Grade, CR06 L3
HDB DRC listed
No / not on record
Office phone
+65 6862 0049
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade5 × 4
  • Years trading5 × 2
  • Other BCA workheads4 × 2
  • Public record completeness4 × 1

Record checked 16 October 2026 · source

4

Tong Hai Yang Construction Pte. Ltd.

9.1/10

On BCA's register it holds CW01 at grade B1 (valid to 1 July 2027). The company's been around since 1983 and is based in Hougang in the North-East region. Other workheads: CR06, CW02, ME05. When we checked its website it described renovation, fit-out work.

Registered address
203 Hougang Street 21 #04-79, Singapore 530203
UEN
198301377N
Incorporated
1983 (43 yrs)
BCA CW01
Grade B1, valid to 1 July 2027
Other BCA workheads
CW02 C1, CR06 L4, ME05 L2
HDB DRC listed
No / not on record
Office phone
+65 6282 6726
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade5 × 4
  • Years trading5 × 2
  • Other BCA workheads4 × 2
  • Public record completeness3 × 1

Record checked 16 October 2026 · source

5

Suncity Contracts Pte. Ltd.

8.4/10

Based in Bishan in the Central region, Suncity Contracts has 29 years on ACRA's books (incorporated 1997). Its CW01 registration is grade B1 and it also carries 1 other BCA workhead. When we checked its website it described renovation, fit-out work.

Registered address
26 Sin Ming Lane #04-112 Midview City, Singapore 573971
UEN
199700239N
Incorporated
1997 (29 yrs)
BCA CW01
Grade B1, valid to 1 July 2028
Other BCA workheads
CR06 L4
HDB DRC listed
No / not on record
Office phone
+65 6837 3779
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade5 × 4
  • Years trading5 × 2
  • Other BCA workheads2 × 2
  • Public record completeness4 × 1

Record checked 16 October 2026 · source

6

Tcg Construction Pte. Ltd.

8.4/10

On BCA's register it holds CW01 at grade B1 (valid to 1 July 2027). The company's been around since 1999 and is based in Museum in the Central region. Other workheads: CR06. When we checked its website it described renovation, fit-out work.

Registered address
180 Clemenceau Avenue #01-01 Haw Par Centre, Singapore 239922
UEN
199901695H
Incorporated
1999 (27 yrs)
BCA CW01
Grade B1, valid to 1 July 2027
Other BCA workheads
CR06 L6
HDB DRC listed
No / not on record
Office phone
+65 6533 3833
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade5 × 4
  • Years trading5 × 2
  • Other BCA workheads2 × 2
  • Public record completeness4 × 1

Record checked 16 October 2026 · source

8

Tang's Engineering Pte Ltd

8.2/10

Tang's Engineering was incorporated in 1999, so about 27 years ago, and its registered office is in Bedok in the East region. BCA lists it under CW01 at grade B2 (valid to 1 July 2027), and it also holds CR06, CW02, ME05.

Registered address
30 Kaki Bukit Industrial Terrace #02-01, Singapore 416110
UEN
199900885H
Incorporated
1999 (27 yrs)
BCA CW01
Grade B2, valid to 1 July 2027
Other BCA workheads
CW02 C2, CR06 L4, ME05 L1
HDB DRC listed
No / not on record
Office phone
+65 6346 8008
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade4 × 4
  • Years trading5 × 2
  • Other BCA workheads4 × 2
  • Public record completeness3 × 1

Record checked 16 October 2026 · source

9

YNY Design + Construction Pte. Ltd.

8.0/10

Based in Sembawang in the North region, YNY Design + Construction has 25 years on ACRA's books (incorporated 2001). Its CW01 registration is grade C1 and it also carries 4 other BCA workheads. It's on HDB's Directory of Renovation Contractors.

Registered address
10 Admiralty Street #06-47 North Link Building, Singapore 757695
UEN
200104444Z
Incorporated
2001 (25 yrs)
BCA CW01
Grade C1, valid to 1 August 2028
Other BCA workheads
CW02 C3, CR06 L4, ME04 L1, ME05 L1
HDB DRC listed
Yes
Office phone
+65 6221 1367
Website
yny.com.sg
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade3 × 4
  • Years trading5 × 2
  • Other BCA workheads5 × 2
  • Public record completeness4 × 1

Record checked 16 October 2026 · source

10

Witflux Engineering Pte. Ltd.

7.8/10

On BCA's register it holds CW01 at grade B2 (valid to 1 May 2027). The company's been around since 2011 and is based in Yishun in the North region. Other workheads: CR06, CR09, CW02. When we checked its website it described renovation, fit-out work.

Registered address
1 Yishun Industrial Street 1 #04-23 A'Posh Bizhub, Singapore 768160
UEN
201133226K
Incorporated
2011 (15 yrs)
BCA CW01
Grade B2, valid to 1 May 2027
Other BCA workheads
CW02 C1, CR06 L2, CR09 L3
HDB DRC listed
No / not on record
Office phone
+65 6262 3435
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade4 × 4
  • Years trading4 × 2
  • Other BCA workheads4 × 2
  • Public record completeness3 × 1

Record checked 16 October 2026 · source

11

Leap Integrated Pte Ltd

7.8/10

Leap Integrated was incorporated in 2000, so about 26 years ago, and its registered office is in Toa Payoh in the Central region. BCA lists it under CW01 at grade C1 (valid to 1 September 2028), and it also holds CR01, CR06, ME01, ME05, ME06 and more.

Registered address
8 Pereira Road #03-02, Singapore 368026
UEN
200008266Z
Incorporated
2000 (26 yrs)
BCA CW01
Grade C1, valid to 1 September 2028
Other BCA workheads
CR01 Single Grade, CR06 L5, ME01 L4, ME05 L5, ME06 L4, ME12 L4, ME15 L5
HDB DRC listed
No / not on record
Office phone
+65 6291 1918
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade3 × 4
  • Years trading5 × 2
  • Other BCA workheads5 × 2
  • Public record completeness3 × 1

Record checked 16 October 2026 · source

12

Mutiara (FE) Pte. Ltd.

7.8/10

Based in Tuas in the West region, Mutiara (FE) has 22 years on ACRA's books (incorporated 2004). Its CW01 registration is grade C1 and it also carries 4 other BCA workheads.

Registered address
17B Tuas Road, Singapore 637815
UEN
200406336W
Incorporated
2004 (22 yrs)
BCA CW01
Grade C1, valid to 1 January 2028
Other BCA workheads
CW02 C3, CR06 L4, CR09 L1, ME06 L1
HDB DRC listed
No / not on record
Office phone
+65 6462 3393
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade3 × 4
  • Years trading5 × 2
  • Other BCA workheads5 × 2
  • Public record completeness3 × 1

Record checked 16 October 2026 · source

13

Builders Alliance Pte. Ltd.

7.6/10

On BCA's register it holds CW01 at grade B2 (valid to 1 July 2027). The company's been around since 2004 and is based in Tuas in the West region. Other workheads: CR06. When we checked its website it described renovation, fit-out work.

Registered address
29 Tuas View Walk 2, Singapore 637563
UEN
200401491M
Incorporated
2004 (22 yrs)
BCA CW01
Grade B2, valid to 1 July 2027
Other BCA workheads
CR06 L2
HDB DRC listed
No / not on record
Office phone
+65 6363 6030
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade4 × 4
  • Years trading5 × 2
  • Other BCA workheads2 × 2
  • Public record completeness4 × 1

Record checked 16 October 2026 · source

14

Sing Tatt Construction Pte. Ltd.

7.6/10

Based in Woodlands in the North region, Sing Tatt Construction has 8 years on ACRA's books (incorporated 2018). Its CW01 registration is grade B2 and it also carries 3 other BCA workheads. It's on HDB's Directory of Renovation Contractors.

Registered address
39 Woodlands Close #08-57 Mega@Woodlands, Singapore 737856
UEN
201803029E
Incorporated
2018 (8 yrs)
BCA CW01
Grade B2, valid to 1 July 2027
Other BCA workheads
CW02 C1, CR01 Single Grade, CR06 L3
HDB DRC listed
Yes
Office phone
+65 6721 9536
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade4 × 4
  • Years trading3 × 2
  • Other BCA workheads4 × 2
  • Public record completeness4 × 1

Record checked 16 October 2026 · source

15

SPACElogic Pte. Ltd.

7.6/10

SPACElogic was incorporated in 2002, so about 24 years ago, and its registered office is in Tampines in the East region. BCA lists it under CW01 at grade C1 (valid to 1 October 2027), and it also holds CR06, ME01, ME05. It's on HDB's Directory of Renovation Contractors.

Registered address
6 Changi South Street 1, Singapore 486792
UEN
200208833D
Incorporated
2002 (24 yrs)
BCA CW01
Grade C1, valid to 1 October 2027
Other BCA workheads
CR06 L5, ME01 L2, ME05 L2
HDB DRC listed
Yes
Office phone
+65 6745 1733
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade3 × 4
  • Years trading5 × 2
  • Other BCA workheads4 × 2
  • Public record completeness4 × 1

Record checked 16 October 2026 · source

16

Ancon Anda Pte. Ltd.

7.3/10

Ancon Anda was incorporated in 1983, so about 43 years ago, and its registered office is in Hougang in the North-East region. BCA lists it under CW01 at grade B2 (valid to 1 January 2027), and it also holds CR06. When we checked its website it described renovation, fit-out work.

Registered address
2 Defu South Street 1 #07-05 Jtc Defu Industrial City, Singapore 533755
UEN
198306109Z
Incorporated
1983 (43 yrs)
BCA CW01
Grade B2, valid to 1 January 2027
Other BCA workheads
CR06 L1
HDB DRC listed
No / not on record
Office phone
+65 6382 1911
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade4 × 4
  • Years trading5 × 2
  • Other BCA workheads2 × 2
  • Public record completeness3 × 1

Record checked 16 October 2026 · source

17

Hetat Pte. Ltd.

7.3/10

Based in Tuas in the West region, Hetat has 23 years on ACRA's books (incorporated 2003). Its CW01 registration is grade B2 and it also carries 1 other BCA workhead. When we checked its website it described renovation, fit-out work.

Registered address
19 Tuas Avenue 20, Singapore 638830
UEN
200303795H
Incorporated
2003 (23 yrs)
BCA CW01
Grade B2, valid to 1 July 2028
Other BCA workheads
CR06 L4
HDB DRC listed
No / not on record
Office phone
+65 6515 6116
Website
hetat.com
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade4 × 4
  • Years trading5 × 2
  • Other BCA workheads2 × 2
  • Public record completeness3 × 1

Record checked 16 October 2026 · source

18

Perform Industries Pte. Ltd.

7.3/10

Based in Ang Mo Kio in the North-East region, Perform Industries has 22 years on ACRA's books (incorporated 2004). Its CW01 registration is grade C1 and it also carries 3 other BCA workheads.

Registered address
81 Tagore Lane #02-19 Tag A, Singapore 787502
UEN
200409404C
Incorporated
2004 (22 yrs)
BCA CW01
Grade C1, valid to 1 October 2027
Other BCA workheads
CR06 L5, ME01 L1, ME05 L2
HDB DRC listed
No / not on record
Office phone
+65 6282 3536
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade3 × 4
  • Years trading5 × 2
  • Other BCA workheads4 × 2
  • Public record completeness3 × 1

Record checked 16 October 2026 · source

19

Everise Construction Pte. Ltd.

7.3/10

Everise Construction was incorporated in 2015, so about 11 years ago, and its registered office is in Geylang in the Central region. BCA lists it under CW01 at grade C1 (valid to 1 March 2028), and it also holds CR06, CW02, ME01, ME05, ME12.

Registered address
33 Ubi Avenue 3 #02-32 Vertex, Singapore 408868
UEN
201541167W
Incorporated
2015 (11 yrs)
BCA CW01
Grade C1, valid to 1 March 2028
Other BCA workheads
CW02 C3, CR06 L4, ME01 L1, ME05 L2, ME12 L1
HDB DRC listed
No / not on record
Office phone
+65 6282 3298
Website
everise.sg
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade3 × 4
  • Years trading4 × 2
  • Other BCA workheads5 × 2
  • Public record completeness3 × 1

Record checked 16 October 2026 · source

20

Inn Interior Enterprise Pte Ltd

7.1/10

Based in Clementi in the West region, Inn Interior Enterprise has 54 years on ACRA's books (incorporated 1972). Its CW01 registration is grade C1 and it also carries 2 other BCA workheads. It's on HDB's Directory of Renovation Contractors.

Registered address
34 Toh Guan Road East #01-26 Enterprise Hub, Singapore 608579
UEN
197200905E
Incorporated
1972 (54 yrs)
BCA CW01
Grade C1, valid to 1 June 2027
Other BCA workheads
CR06 L3, CR09 L1
HDB DRC listed
Yes
Office phone
+65 6316 5471
Google reviews
Not checked yet, not scored

How it scored

  • BCA CW01 grade3 × 4
  • Years trading5 × 2
  • Other BCA workheads3 × 2
  • Public record completeness4 × 1

Record checked 16 October 2026 · source

Before you hire

Get your QP or architect to confirm what approvals the works need before you collect quotes, it changes the price a lot. Ask each contractor whether they've handled A&A in the same type of building, an industrial unit isn't the same as a shophouse. And ask for their CW01 grade in writing, then check it on BCA's public directory.

Questions people ask

What's the difference between CW01 and CR06?

CW01 covers general building work, the structural side. CR06 covers interior decoration and finishing. A&A jobs often need both, and firms holding both tend to score higher here.

Do I always need approval for A&A works?

Not always, it depends what's being changed. Structural works and changes affecting fire safety normally do. Your QP is the right person to confirm that for your site.