UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No. ________)*
Limbach Holdings, Inc.
(Name of Issuer)
Common
(Title of Class of Securities)
53263P105
(CUSIP Number)
Tom Parkhurst
11747 NE 8th St
Suite 205
Bellevue, WA 98005
425 455-0816
(Name, Address and Telephone Number of Person
Authorized to Receive Notices and Communications)
12/31/2018
(Date of Event which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to
which this Schedule is filed:
X Rule 13d-1(b)
  Rule 13d-1(c)
  Rule 13d-1(d)
* The remainder of this cover page shall be filled out for a
reporting person's initial filing on this form with respect to
the subject class of securities, and for any subsequent
amendment containing information which would alter disclosures
provided in a prior cover page.
The information required on the remainder of this cover page
shall not be deemed to be "filed" for the purpose of Section 18
of the Securities Exchange Act of 1934 ("Act") or otherwise
subject to the liabilities of that section of the Act but shall
be subject to all other provisions of the Act (however, see the
Notes).






CUSIP No. 53263P105

13G

Page 2 of 7 Pages











1.

NAMES OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES
ONLY)

AltraVue Capital, LLC


2.

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(see instructions)
(a)    ?
(b)    ?


3.

SEC USE ONLY



4.

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware, US








NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH

5.

SOLE VOTING POWER

279,614


6.

SHARED VOTING POWER

00,000


7.

SOLE DISPOSITIVE POWER

481,083


8.

SHARED DISPOSITIVE POWER

00,000






9.

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
PERSON

481,083


10.

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES
(see instructions)    ?


11.

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

6.34%


12.

TYPE OF REPORTING PERSON (see instructions)

IA













CUSIP No. 53263P105

13G

Page 3 of 7 Pages





Item 1.

(a)
Name of Issuer
Limbach Holdings, Inc.




(b)
Address of Issuer?s Principal Executive Offices
1251 Waterfront Place
Suite 201
Pittsburgh, PA 15222



Item 2.

(a)
Name of Person Filing
AltraVue Capital, LLC




(b)
Address of the Principal Office or, if none, residence
1747 NE 1st Street
Suite 205
Bellevue, WA 98005




(c)
Citizenship
USA




(d)
Title of Class of Securities
Common




(e)
CUSIP Number
53263P105



Item 3.  If this statement is filed pursuant to ??240.13d-1(b)
or 240.13d-2(b) or (c), check whether the person filing is a:

(a)
?
Broker or dealer registered under section 15 of the Act
(15 U.S.C. 78o).





(b)
?
Bank as defined in section 3(a)(6) of the Act (15 U.S.C.
78c).








(c)
?
Insurance company as defined in section 3(a)(19) of the
Act (15 U.S.C. 78c).





(d)
?
Investment company registered under section 8 of the
Investment Company Act of 1940 (15 U.S.C. 80a-8).





(e)
X
An investment adviser in accordance with ?240.13d-
1(b)(1)(ii)(E);





(f)
?
An employee benefit plan or endowment fund in accordance
with ?240.13d-1(b)(1)(ii)(F);





(g)
?
A parent holding company or control person in accordance
with ?240.13d-1(b)(1)(ii)(G);





(h)
?
A savings associations as defined in Section 3(b) of the
Federal Deposit Insurance Act (12 U.S.C. 1813);





(i)
?
A church plan that is excluded from the definition of an
investment company under section 3(c)(14) of the
Investment Company Act of 1940 (15 U.S.C. 80a-3);





(j)
?
Group, in accordance with ?240.13d-1(b)(1)(ii)(J).




Item 4.  Ownership.
Provide the following information regarding the aggregate number
and percentage of the class of securities of the issuer
identified in Item 1.






(a)

Amount beneficially owned:  481,083






(b)

Percent of class:  6.34%






(c)

Number of shares as to which the person has:








(i)
Sole power to vote or to direct the vote  279,614.








(ii)
Shared power to vote or to direct the vote 0.








(iii)
Sole power to dispose or to direct the disposition
of  481,083.








(iv)
Shared power to dispose or to direct the disposition
of  0.





Instruction. For computations regarding securities which
represent a right to acquire an underlying security see
?240.13d-3(d)(1).
Item 5.  Ownership of Five Percent or Less of a Class.
If this statement is being filed to report the fact that as of
the date hereof the reporting person has ceased to be the
beneficial owner of more than five percent of the class of
securities, check the following     ?.
Instruction. Dissolution of a group requires a response to this
item.
Item 6.  Ownership of More than Five Percent on Behalf of
Another Person.
Item 7.  Identification and Classification of the Subsidiary
Which Acquired the Security Being Reported on By the Parent
Holding Company.
Item 8.  Identification and Classification of Members of the
Group.
Item 9.  Notice of Dissolution of Group.
Item 10.  Certification.





(a)

The following certification shall be included if the
statement is filed pursuant to ?240.13d-1(b):








By signing below I certify that, to the best of my
knowledge and belief, the securities referred to above
were acquired and are held in the ordinary course of
business and were not acquired and are not held for the
purpose of or with the effect of changing or influencing
the control of the issuer of the securities and were not
acquired and are not held in connection with or as a
participant in any transaction having that purpose or
effect.







(b)

The following certification shall be included if the
statement is filed pursuant to ?240.13d-1(c):








By signing below I certify that, to the best of my
knowledge and belief, the securities referred to above
were not acquired and are not held for the purpose of or
with the effect of changing or influencing the control of
the issuer of the securities and were not acquired and
are not held in connection with or as a participant in
any transaction having that purpose or effect.







CUSIP No. 53263P105

13G

Page 7 of 7 Pages





   After reasonable inquiry and to the best of my knowledge and
belief, I certify that the information set forth in this
statement is true, complete and correct.

01/16/2019
Date

/s/ Tom Parkhurst
Signature

Tom Parkhurst / COO, CCO
Name/Title